×
Google

Google AI Chatbot Bard Offers Inaccurate Information in Company Ad (reuters.com) 52

Google published an online advertisement in which its much anticipated AI chatbot Bard delivered an inaccurate answer. From a report: The tech giant posted a short GIF video of Bard in action via Twitter, describing the chatbot as a "launchpad for curiosity" that would help simplify complex topics. In the advertisement, Bard is given the prompt: "What new discoveries from the James Webb Space Telescope (JWST) can I tell my 9-year old about?" Bard responds with a number of answers, including one suggesting the JWST was used to take the very first pictures of a planet outside the Earth's solar system, or exoplanets. This is inaccurate. The first pictures of exoplanets were taken by the European Southern Observatory's Very Large Telescope (VLT) in 2004, as confirmed by NASA.
AI

Google Announces ChatGPT Rival Bard (theverge.com) 56

Google is working on a ChatGPT competitor named Bard. From a report: Google's CEO, Sundar Pichai, announced the project in a blog post today, describing the tool as an "experimental conversational AI service" that will answer users' queries and take part in conversations. The software will be available to a group of "trusted testers" today, says Pichai, before becoming "more widely available to the public in the coming weeks." It's not clear exactly what capabilities Bard will have, but it seems the chatbot will be just as free ranging as OpenAI's ChatGPT. A screenshot encourages users to ask Bard practical queries, like how to plan a baby shower or what kind of meals could be made from a list of ingredients for lunch.

Writes Pichai: "Bard can be an outlet for creativity, and a launchpad for curiosity, helping you to explain new discoveries from NASA's James Webb Space Telescope to a 9-year-old, or learn more about the best strikers in football right now, and then get drills to build your skills." Pichai also notes that Bard "draws on information from the web to provide fresh, high-quality responses," suggesting it may be able to answer questions about recent events -- something ChatGPT struggles with.
Further reading: An important next step on our AI journey (Google blog).
Moon

What Time Is It On the Moon? (nature.com) 193

Satellite navigation systems for lunar settlements will require local atomic clocks. Scientists are working out what time they will keep. From a report: It's not obvious what form a universal lunar time would take. Clocks on Earth and the Moon naturally tick at different speeds, because of the differing gravitational fields of the two bodies. Official lunar time could be based on a clock system designed to synchronize with UTC, or it could be independent of Earth time. Representatives of space agencies and academic organizations worldwide met in November 2022 to start drafting recommendations on how to define lunar time at the European Space Research and Technology Centre of the European Space Agency (ESA) in Noordwijk, the Netherlands.

Decisions must be made soon, says Patrizia Tavella, who leads the time department at the International Bureau of Weights and Measures in Sevres, France. If an official lunar time is not established, space agencies and private companies will come up with their own solutions, she says. "This is why we want to raise an alert now, saying let's work together to take a common decision." The most pressing need for lunar time comes from plans to create a dedicated global satellite navigation system (GNSS) for the Moon, similar to how GPS and other satellite navigation networks enable precise location tracking on Earth.

Space agencies plan to install this lunar GNSS from around 2030. ESA approved a lunar satellite navigation project called Moonlight at its ministerial council meeting on 22 and 23 November 2022 in Paris, and NASA established a similar project, called Lunar Communications Relay and Navigation Systems, last January. Until now, Moon missions have pinpointed their locations using radio signals sent to large antennas on Earth at scheduled times. But with dozens of missions planned, "there's just not enough resources to cover everybody," says Joel Parker, an engineer who works on lunar navigation at the Goddard Center.

Space

Newly Discovered Asteroid to Pass Close to Earth Tonight (nytimes.com) 19

A small asteroid is flying very close to Earth on Thursday night, less than a week after astronomers discovered the object. The New York Times reports: The asteroid, named 2023 BU, was scheduled to pass over the southern tip of South America at 7:27 p.m. Eastern time. The asteroid is fairly small -- less than 30 feet across, about the size of a truck -- and will be best visible in the skies to the west of southern Chile. For space watchers unable to view 2023 BU firsthand, the Virtual Telescope Project will be broadcasting the event on its website and YouTube channel. The asteroid will not hit Earth but will make one of the closest approaches ever by such an object, hurtling past Earth at just 2,200 miles above its surface, according to a news release from the NASA Jet Propulsion Laboratory. This encounter puts the asteroid "well within the orbit of geosynchronous satellites," the statement noted, but the asteroid is not on track to hit any.

2023 BU was unknown to NASA, or anyone, until last Saturday. Gennadiy Borisov, an amateur astronomer in Crimea, noticed the asteroid from the MARGO Observatory, a setup of telescopes that he has used to discover other interstellar objects. Astronomers then determined 2023 BU's orbit around the sun and impending trip past Earth using data from the Minor Planet Center, a project sanctioned by the International Astronomical Union. It publishes positions of newly found space objects, including comets and satellites, from information of several observatories worldwide.

United States

US To Test Nuclear-powered Spacecraft by 2027 (reuters.com) 103

The United States plans to test a spacecraft engine powered by nuclear fission by 2027 as part of a long-term NASA effort to demonstrate more efficient methods of propelling astronauts to Mars in the future, the space agency's chief said Tuesday. From a report: NASA will partner with the U.S. military's research and development agency, DARPA, to develop a nuclear thermal propulsion engine and launch it to space "as soon as 2027," NASA administrator Bill Nelson said during a conference in National Harbor, Maryland.
Mars

Mars Helicopter 'Ingenuity' Completes Its 40th Flight on Mars (space.com) 20

"NASA's tiny Ingenuity helicopter now has 40 off-Earth flights under its belt," reports Space.com: The 4-pound (1.8 kilograms) Ingenuity lifted off yet again on Thursday (Jan. 19), staying aloft for nearly 92 seconds on a sortie that covered about 584 feet (178 meters) of horizontal distance. The flight repositioned Ingenuity, moving it from "Airfield Z" on the floor of Mars' Jezero Crater to "Airfield Beta," according to the mission's flight log. That journey took the little chopper over some sand dunes, as imagery captured during the hop shows....

Ingenuity is a technology demonstrator designed to show that aerial exploration is possible on Mars despite the planet's thin atmosphere. The helicopter's prime mission covered just five flights, which Ingenuity knocked out shortly after touching down inside Jezero. The chopper then shifted into an extended mission, during which it has been pushing its flight capabilities and serving as a scout for Perseverance. The helicopter's aerial observations help the rover team identify potentially interesting scientific targets and pick the best routes through the rugged landscapes on Jezero's floor.

Space

Watch SpaceX's Falcon Heavy Launch - the First of Its Five Missions This Year (youtube.com) 31

Watch a rare launch of SpaceX's massive Falcon Heavy rocket livestreamed on SpaceX's YouTube channel.

"Nearly five years have passed since the massive Falcon Heavy rocket made its successful debut launch in February 2018," writes Ars Technica.

"Since then, however, SpaceX's heavy lift rocket has flown just three additional times." Why? It's partly because there is simply not all that much demand for a heavy lift rocket. Another factor is that SpaceX has increased the performance of its Falcon 9 rocket so much that it can complete a lot of the missions originally manifested on the Falcon Heavy. However the main reason for the low cadence has been due to a lack of readiness of payloads for the new rocket, particularly from the US Department of Defense. But now this trickle of Falcon Heavy launches may turn into a flood. [Sunday's launch is the first of potentially five launches this year]

SpaceX completed a hot fire test of the rocket on Tuesday, and declared that the vehicle was ready for liftoff. The rocket will use a brand new core stage, and side-mounted boosters that have flown into space one time, as side-mounted boosters on the USSF-44 Falcon Heavy mission that launched on November 1 2022.

What's it carrying? Space.com writes: The main payload is a military communications satellite called Continuous Broadcast Augmenting SATCOM 2, which the Falcon Heavy will send to geostationary orbit, about 22,200 miles (35,700 kilometers) above Earth. Also flying Saturday is a rideshare spacecraft called Long Duration Propulsive ESPA (LDPE)-3A, a payload adapter that can hold up to six small satellites, according to EverydayAstronaut.com. LDPE-3A will carry five Space Force payloads on USSF-67. Among them are "two operational prototypes for enhanced situational awareness and an operational prototype crypto/interface encryption payload providing secure space-to-ground communications capability," Space Force officials said in an emailed statement on Friday....

If all goes according to plan, the two side boosters will come back to Earth shortly after liftoff on Sunday, making vertical touchdowns at Cape Canaveral Space Force Station, which is next door to NASA's Kennedy Space Center. The central booster will not return, instead ditching into the Atlantic Ocean....

USSF-67 is part of a busy week for SpaceX. The company also plans to launch 51 of its Starlink internet satellites to low Earth orbit atop a Falcon 9 on Thursday, January 19.

Moon

How NASA's Planned Moon Presence Will Practice Living in Space (msn.com) 49

NASA's plans for a presence on the moon "will allow the program to practice how to live in space sustainably," writes the Washington Post. "It will allow scientists to tap into the moon's considerable scientific value to learn more about how Earth was formed. And perhaps, it would also serve as a steppingstone to Mars and other deep-space destinations years in the future."

First, unlike in the 1960s — we now know that the moon has water. Water is not only key to sustaining human life, but its component parts — hydrogen and oxygen — can be used as rocket propellant, making the moon a gas station in space. That could be critical for long-duration missions, allowing spacecraft to refuel on the moon instead of lugging all the fuel from Earth. And since the moon's gravity is one-sixth of Earth's, it is a relatively easy springboard to other points of the solar system.
NASA is also considering building a nuclear reactor on the moon: It's one of several initiatives NASA has begun under its Artemis program, designed to help astronauts stay for extended periods when they'll need power, transportation and the ability to use the moon's resources.... The effort is still very much in its nascent stages, and the funding NASA would need for the long term has not materialized in full.... A sustainable presence, despite the rosy predictions coming from the top echelons of the agency, is still years away, and the technical challenges are immense.

But NASA has begun developing the technologies that would be needed to sustain astronauts on the surface for extended periods. In June of last year, the agency and the Energy Department awarded contracts, worth $5 million each, to three companies to develop nuclear power systems that could be ready to launch by the end of the decade for a test on the moon. The systems would generate 40 kilowatts of power, enough energy to power six or seven American households, and last about 10 years....

NASA is also looking to build solar farms, using arrays that point vertically and catch the angle of the sun over the horizon. And it's exploring how best to exploit what are called "in situ resources" — meaning those that already exist, such as the regolith.

The article even broaches the idea of "a lunar economy that would help sustain a permanent presence."
NASA

NASA's Webb Telescope Discovers Its First Exoplanet (npr.org) 22

NASA's Webb telescope has discovered an exoplanet, which is any planet that is outside of our solar system, for the first time, the agency announced Wednesday. From a report: The planet, called LHS 475 b, is nearly the same size as Earth, having 99% of our planet's diameter, scientists said. However, it is several hundred degrees hotter than Earth and completes its orbit around its star in two days. LHS 475 b is in the constellation Octans and is 41 light-years away, which is relatively nearby. Scientists are still trying to determine if the planet has an atmosphere. It's possible LHS 475 b has no atmosphere or one made completely out of carbon dioxide, but one option can be totally eliminated.
ISS

Russia To Rescue ISS Crew On Backup Rocket After Capsule Leak (reuters.com) 27

An anonymous reader quotes a report from Reuters: Russia said on Wednesday it would launch another Soyuz spacecraft next month to bring home two cosmonauts and a U.S. astronaut from the International Space Station after their original capsule was struck by a micrometeoroid and started leaking last month. The leak came from a tiny puncture -- less than 1 millimeter wide -- on the external cooling system of the Soyuz MS-22 capsule, one of two return capsules docked to the ISS that can bring crew members home.

Russia said a new capsule, Soyuz MS-23, would be sent up on Feb. 20 to replace the damaged Soyuz MS-22, which will be brought back to Earth empty. "Having analyzed the condition of the spacecraft, thermal calculations and technical documentation, it has been concluded that the MS-22 must be landed without a crew on board," said Yuri Borisov, the head of Russian space agency Roscosmos. Russian cosmonauts Sergey Prokopyev and Dmitry Petelin and U.S. astronaut Francisco Rubio had been due to end their mission in March but will now extend it by a few more months and return aboard the MS-23.

"They are ready to go with whatever decision we give them," Joel Montalbano, NASA's ISS program manager, told a news conference. "I may have to fly some more ice cream to reward them," he added. The MS-23, which had been due to take up three new crew in March, will instead depart from the Baikonur cosmodrome in Kazakhstan as an unmanned rescue mission next month. If there is an emergency in the meantime, Roscosmos said it will look at whether the MS-22 spacecraft can be used to rescue the crew. In this scenario, temperatures in the capsule could reach unhealthy levels of 30-40 degrees Celsius (86-104 degrees Fahrenheit). "In case of an emergency, when the crew will have a real threat to life on the station, then probably the danger of staying on the station can be higher than going down in an unhealthy Soyuz," Sergei Krikalev, Russia's chief of crewed space programs, said.

Space

Giant Plasma Cloud Bursts From the Sun (space.com) 39

SonicSpike shares a report from Space.com: A giant cloud of magnetized plasma exploded from a sunspot hidden on the far side of the sun that might turn to face Earth only two days from now, so get ready for some solar fireworks. The explosion that erupted from behind the sun's eastern edge in the early morning of Tuesday (Jan. 3) was a so-called coronal mass ejection (CME), a burst of particles from the sun's upper atmosphere, or corona. The CME was accompanied by a powerful solar flare that lasted an overwhelming six hours, solar scientist Keith Strong said on Twitter. Neither the flare nor the CME were directed at Earth, but experts warn that the hidden sunspot that produced them will soon be facing the planet as the sun rotates.

Yesterday's flare and CME were detected by multiple sun-observing spacecraft including the joint NASA/European Space Agency Solar and Heliospheric Observatory mission (SOHO) and NASA's Solar Dynamics Observatory. The measurements helped scientists to determine that the sunspot, or active region, that produced the bursts, will move to the Earth-facing portion of the sun's disk within two days, according to Space Weather. [...] The British space weather forecaster Met Office predicts low solar activity in the next couple of days with a potential increase expected toward the end of this week as the mysterious sunspot emerges at the sun's eastern edge.

Moon

South Korean Moon Mission Delivers Devastatingly Gorgeous Earth Views (cnet.com) 38

South Korea's Korea Pathfinder Lunar Orbiter spacecraft, known as Danuri, has sent back some high-resolution images from the moon. The Korea Aerospace Research Institute shared the views on Twitter this week. CNET reports: The first two come from late December and show the cratered landscape of the moon with Earth peeking above the horizon. The images are reminiscent of Earthrise views seen from NASA's Apollo and Artemis missions. KARI shared a second set of Earth images snapped during the new year.
NASA

NASA Apollo Astronaut Walt Cunningham Has Died At Age 90 (npr.org) 22

Walt Cunningham, one of the early Apollo astronauts, died Tuesday after complications from a fall. He was 90. NPR reports: Walt Cunningham flew in space just one time. His flight in 1968 was an important -- and often forgotten one -- for the lunar program. Cunningham was the lunar module pilot of the first manned Apollo mission that went to space. Apollo 7's 11-day trip around the Earth was a key stepping stone to NASA's march to the moon. "The real accomplishment, of course, was the first manned landing on the moon," Cunningham told NPR in 2016. "But that was the fifth of what I've always described as five giant steps. The first one was the Apollo 7 mission, of course. Complete test of the Apollo spacecraft."

The launch came after a difficult time for NASA. Just 21 months before, a fire on the launchpad killed three astronauts during a test of Apollo 1. In the interim, NASA changed many procedures and the command module underwent a series of safety improvements. Cunningham said in 2016 that if Apollo 7 had not gone well, the U.S. wouldn't have landed on the moon before the end of the 1960s. "Historically, what the public doesn't realize," he said, "It is still the longest, most ambitious, most successful first test flight of any new flying machine ever."

"There were so many things that had to be tested," he recalled. During the flight, the crew test-fired the engine that would place Apollo into and out of lunar orbit, simulated docking maneuvers and did the first-ever live television broadcast from an American spacecraft. "It was hard to imagine that we could get through all those things [in an 11-day mission] without something going wrong and saying, 'hey you need to gotta come home," Cunningham said. The mission was deemed a success but it was the last time these astronauts would fly in space. There was tension between Apollo 7's commander, Wally Schirra, and mission control. As the flight dragged on, Schirra caught a cold and so did astronaut Donn Eisele and the crew's squabbles worsened with ground controllers. Despite that, Cunningham said, "As I look back on it, it was a job, a challenge, and a task that in the end was very well done."

Space

Comet To Make First, And Likely Only, Appearance in Recorded History (cbsnews.com) 37

The new year has just begun, but the cosmos are already set to make history in 2023. From a report: A comet discovered less than a year ago has traveled billions of miles from its believed origins at the edge of our solar system and will be visible in just a few weeks during what will likely be its only recorded appearance. The comet, C/2022 E3 (ZTF), was first seen in March 2022 as it made its way through Jupiter's orbit. According to NASA, it's a long-period comet believed to come from the Oort Cloud, the most distant region of Earth's solar system that's "like a big, thick-walled bubble made of icy pieces of space debris" that can get even bigger than mountains. The inner edge of this region is thought to be between 2,000 and 5,000 astronomical units (AUs) from the sun -- between 186 billion and 465 billion miles.

This means that C/2022 E3 (ZTF) has made a rare, once-in-a-lifetime journey to be close to Earth. "Most known long-period comets have been seen only once in recorded history because their orbital periods are so, well, long," NASA says. "Countless more unknown long-period comets have never been seen by human eyes. Some have orbits so long that the last time they passed through the inner solar system, our species did not yet exist."

Now, the recently discovered E3 comet, which has been seen with a bright greenish coma and "short broad" dust tail, is set to make its closest approach to the sun on January 12. It will make its closest approach to Earth on February 2. Astrophotographer Dan Bartlett managed to capture an image of the comet in December from his backyard in California. He was able to see "intricate tail structure" in the comet's plasma tail, he said, and "conditions are improving."

Mars

NASA Images Showcase the Eerie Beauty of Winter on Mars (cnn.com) 11

CNN reports: Mars may seem like a dry, desolate place, but the red planet transforms into an otherworldly wonderland in winter, according to a new video shared by NASA....

"Enough snow falls that you could snowshoe across it," said Sylvain Piqueux, a Mars scientist at NASA's Jet Propulsion Laboratory in Pasadena, California, in a statement from a NASA release. "If you were looking for skiing, though, you'd have to go into a crater or cliffside, where snow could build up on a sloped surface."

So far, no orbiters or rovers have been able to see snow fall on the red planet because the weather phenomenon only occurs at the poles beneath cloud cover at night. The cameras on the orbiters can't peer through the clouds, and no robotic explorers have been developed that could survive the freezing temperatures at the poles. [ -190 degrees Fahrenheit, or -123 degrees Celsius) ] However, the Mars Climate Sounder instrument on the Mars Reconnaissance Orbiter can detect light that's invisible to the human eye. It has made detections of carbon dioxide snow falling at the Martian poles. The Phoenix lander, which arrived on Mars in 2008, also used one of its laser instruments to detect water-ice snow from its spot about 1,000 miles (1,609 kilometers) away from the Martian north pole....

"Because carbon dioxide ice has a symmetry of four, we know dry-ice snowflakes would be cube-shaped," Piqueux said. "Thanks to the Mars Climate Sounder, we can tell these snowflakes would be smaller than the width of a human hair."

Ice and carbon dioxide-based frosts also form on Mars, and they can occur farther away from the poles. The Odyssey orbiter (which entered Mars' orbit in 2001) has watched frost forming and turning to a gas in the sunlight, while the Viking landers spotted icy frost on Mars when they arrived in the 1970s. At the end of winter, the season's buildup of ice can thaw and turn into gas, creating unique shapes that have reminded NASA scientists of Swiss cheese, Dalmatian spots, fried eggs, spiders and other unusual formations.

That's just the beginning, according to a press release from NASA's Jet Propulsion Lab: This "thawing" also causes geysers to erupt: Translucent ice allows sunlight to heat up gas underneath it, and that gas eventually bursts out, sending fans of dust onto the surface. Scientists have actually begun to study these fans as a way to learn more about which way Martian winds are blowing.
And they also note that the camera aboard NASA's Mars Reconnaissance Orbiter also captured some surprisingly colorful images of sand dunes covered by frost
Space

Better Than Expected: Astronomers Celebrate the Webb Telescope's Findings (indianexpress.com) 46

To hear the first results from the James Webb Telescope, 200 astronomers descended on the Space Telescope Science Institute for three days in December, reports the New York Times, with an update on what may be 2022's biggest science story. The $10 billion telescope "is working even better than astronomers had dared to hope" -- and astronomers are ecstatic: At a reception after the first day of the meeting, John Mather of NASA's Goddard Space Flight Center and Webb's senior project scientist from the start, raised a glass to the 20,000 people who built the telescope, the 600 astronomers who had tested it in space and the new generation of scientists who would use it. "Some of you weren't even born when we started planning for it," he said. "Have at it!"
Launched on Christmas one year ago, the Webb telescope "is seven times as powerful as its predecessor, the Hubble Space Telescope," the Times reports -- sharing what was revealed in that auditorium in December: One by one, astronomers marched to the podium and, speaking rapidly to obey the 12-minute limit, blitzed through a cosmos of discoveries. Galaxies that, even in their relative youth, had already spawned supermassive black holes. Atmospheric studies of some of the seven rocky exoplanets orbiting Trappist 1, a red dwarf star that might harbor habitable planets. (Data suggest that at least two of the exoplanets lack the bulky primordial hydrogen atmospheres that would choke off life as we know it, but they may have skimpy atmospheres of denser molecules like water or carbon dioxide.) "We're in business," declared Bjorn Benneke of the University of Montreal, as he presented data of one of the exoplanets.

Megan Reiter of Rice University took her colleagues on a "deep dive" through the Cosmic Cliffs, a cloudy hotbed of star formation in the Carina constellation, which was a favorite early piece of sky candy. She is tracing how jets from new stars, shock waves and ionizing radiation from more massive nearby stars that were born boiling hot are constantly reshaping the cosmic geography and triggering the formation of new stars. "This could be a template for what our own sun went through when it was formed," Dr. Reiter said in an interview.

Between presentations, on the sidelines and in the hallways, senior astronomers who were on hand in 1989 when the idea of the Webb telescope was first broached congratulated one another and traded war stories about the telescope's development. They gasped audibly as the youngsters showed off data that blew past their own achievements with the Hubble.

The telescope is a joint project of NASA, the European Space Agency and the Canadian Space Agency. And appropriately for New Year's Eve, the article concludes with a look to the future: Thus far the telescope, bristling with cameras, spectroscopes and other instruments, is exceeding expectations. (Its resolving power is twice as good as advertised.) The telescope's flawless launch, Dr. Rigby reported, has left it with enough maneuvering fuel to keep it working for 26 years or more. "These are happy numbers...."

The closing talk fell to Dr. Mather. He limned the telescope's history, and gave a shout-out to Barbara Mikulski, the former senator of Maryland, who supported the project in 2011 when it was in danger of being canceled. He also previewed NASA's next big act: a 12-meter space telescope called the Habitable Worlds Observatory that would seek out planets and study them.

Space

SpaceX Caps '22 With Record-Setting 61st Falcon 9 Launch (cbsnews.com) 24

Closing out a record-setting year, SpaceX launched a $186 million Israeli Earth-imaging satellite early Friday, the California rocket builder's 61st and final Falcon 9 launch of 2022 and its seventh this month, both modern-day records. From a report: Since the rocket's debut in 2010, SpaceX has chalked up 194 Falcon 9 launches overall -- 198 including four triple-core Falcon Heavies -- putting together a string of 179 straight successful flights since the company's only in-flight failure in 2015. This year's flight total falls one short of doubling last year's. Even more flights are expected in 2023, including two NASA astronaut ferry flights to the International Space Station, at least two commercial crew flights, two station cargo flights, and the maiden orbital launch of SpaceX's huge Super Heavy/Starship rocket.
ISS

NASA Mulls SpaceX Backup Plan For Crew of Russia's Leaky Soyuz Ship (reuters.com) 61

NASA is exploring whether SpaceX's Crew Dragon spacecraft can potentially offer an alternative ride home for some crew members of the International Space Station after a Russian capsule sprang a coolant leak while docked to the orbital lab. Reuters reports: NASA and Russia's space agency, Roscosmos, are investigating the cause of a punctured coolant line on an external radiator of Russia's Soyuz MS-22 spacecraft, which is supposed to return its crew of two cosmonauts and one U.S. astronaut to Earth early next year. But the Dec. 14 leak, which emptied the Soyuz of a vital fluid used to regulate crew cabin temperatures, has derailed Russia's space station routines, with engineers in Moscow examining whether to launch another Soyuz to retrieve the three-man team that flew to ISS aboard the crippled MS-22 craft. If Russia cannot launch another Soyuz ship, or decides for some reason that doing so would be too risky, NASA is weighing another option.

"We have asked SpaceX a few questions on their capability to return additional crew members on Dragon if necessary, but that is not our prime focus at this time," NASA spokeswoman Sandra Jones said in a statement to Reuters. It was unclear what NASA specifically asked of SpaceX's Crew Dragon capabilities, such as whether the company can find a way to increase the crew capacity of the Dragon currently docked to the station, or launch an empty capsule for the crew's rescue. But the company's potential involvement in a mission led by Russia underscores the degree of precaution NASA is taking to ensure its astronauts can safely return to Earth, should one of the other contingency plans arranged by Russia fall through.

AI

AI Has Changed the Way We Explore Our Solar System (space.com) 12

"Last week at the 2022 American Geophysical Union (AGU) Fall Meeting, planetary scientists and astronomers discussed how new machine-learning techniques are changing the way we learn about our solar system," reports Space.com, "from planning for future mission landings on Jupiter's icy moon Europa to identifying volcanoes on tiny Mercury...." For many tasks in astronomy, it can take humans months, years or even decades of effort to sift through all the necessary data... "You can find up to 10,000, hundreds of thousands of boulders, and it's very time consuming," Nils Prieur, a planetary scientist at Stanford University in California said during his talk at AGU. Prieur's new machine-learning algorithm can detect boulders across the whole moon in only 30 minutes. It's important to know where these large chunks of rock are to make sure new missions can land safely at their destinations. Boulders are also useful for geology, providing clues to how impacts break up the rocks around them to create craters.

Computers can identify a number of other planetary phenomena, too: explosive volcanoes on Mercury, vortexes in Jupiter's thick atmosphere and craters on the moon, to name a few. During the conference, planetary scientist Ethan Duncan, from NASA's Goddard Space Flight Center in Maryland, demonstrated how machine learning can identify not chunks of rock, but chunks of ice on Jupiter's icy moon Europa. The so-called chaos terrain is a messy-looking swath of Europa's surface, with bright ice chunks strewn about a darker background. With its underground ocean, Europa is a prime target for astronomers interested in alien life, and mapping these ice chunks will be key to planning future missions.

Upcoming missions could also incorporate artificial intelligence as part of the team, using this tech to empower probes to make real-time responses to hazards and even land autonomously. Landing is a notorious challenge for spacecraft, and always one of the most dangerous times of a mission.

Mars

Could We Make It To Mars Without NASA? (reason.com) 132

Reason.com notes NASA's successful completion of its Artemis I mission, calling it "part of NASA's ambitious program to bring American astronauts back to the moon for the first time in half a century. And then on to Mars."

But then they ask if the project is worth the money, with the transportation policy director at the libertarian "Reason Foundation" think tank, Robert W. Poole, arguing instead that NASA "isn't particularly interested in cost savings, and its decision making is overly driven by politics." NASA would have been better off replacing the costly and dated Space Launch System used in the Artemis program. But it didn't. This probably has a lot to do with the fact that it was largely constructed and engineered in Alabama, the home state of Senate Appropriations Committee Chair Richard Shelby, who has a history of strong-arming NASA to preserve jobs for his constituents.
Long-time Slashdot reader SonicSpike shared the article, which ultimately asks whether it'd be faster and cheaper to just rely on private companies: In 2009, the private sector saw one of its biggest champions ascend to become the number two person at NASA. Lori Garver pushed to scrap the Constellation program as a way to entice the private sector to fill in the gaps. She also spearheaded the Commercial Crew Program, which continues to employ commercial contractors to ferry astronauts to the International Space Station. Today, companies like Elon Musk's SpaceX are launching rockets at a faster pace and for a fraction of what NASA spends. In 2022, the company successfully launched 61 rockets, each with a price tag between $100 million and 150 million.

Private companies already design and lease NASA much of its hardware. Poole says there's no reason NASA can't take it a step further and just use the SpaceX starship to cover the entire journey from Earth to the moon and eventually to Mars. "If the current NASA plan goes ahead to have the SpaceX Starship actually deliver the astronauts from the lunar outpost orbit to the surface of the moon and bring them back, that would be an even more dramatic refutation of the idea that only NASA should be doing space transportation," he says.

Poole says that instead of flying its own missions, NASA should play a more limited and supportive role. "The future NASA role that makes the most sense is research and development to advance science," he says.

But for a contrary opinion, Slashdot reader youn counters that "You can bash NASA all you want but a big reason the private sector is where it is at is because it funded research 12 years ago." They share a CNET article noting the $6 billion NASA budgeted over five years "to kick-start development of a new commercial manned spaceflight capability."

And Slashdot reader sg_oneill argues that "Its gonna be a century before we're really colonizing the moon and/or Mars... because we have a lot of science to do first. How do you do a civilization with zero energy inputs from the rest of humanity? How do we deal with radiation? How do bodies work in low G? (Mars is about 1/3 the gravbity of earth). This needs science, and to get science we need NASA, even if private enterprise is building the rockets."

Slashdot Top Deals