"A team of student designers and engineers from the RCA and Imperial College have designed an open-source alternative to GPS, called Aweigh, that does not rely on satellites," reports the design magazine Dezeen.

It's similar to the sextant, calculating positions by measuring the angular distances between the horizon and the sun. ExRex (Slashdot reader #47,177) shares their report: They said that Aweigh can even work on a cloudy day when the sun is not in view, and unlike devices that use satellites, such as smartphones, Aweigh functions offline so a user's positional data cannot be leaked through the internet.

"Satellites send information which can be intercepted and interfered with, but to interfere with Aweigh, one would need to artificially move the sun," explained the team of four, made up of States Lee, Samuel Iliffe, Flora Weil and Keren Zhang. "If one of the devices is faulty or broken, it is only that user who suffers. If one satellite is faulty, then the consequences can affect millions of users.

"Most people don't think about the way they navigate," the group continued, "but as concerns over centralised technology and data privacy increase, individuals should have a choice over how their data is taken and used. Aweigh is about giving back choice...." Describing the system as "a set of tools and blueprints", the team wanted users to be able to hack or fix the tools they use, so making the project open-source was important.
There's a video about the device here. It locates the sun by reading light values with a customized Raspberry Pi board.

Although Slashdot reader RockDoctor asks an interesting question: does it work at night?

Two Harvard researchers believe a small meteor that struck earth in 2014 was from another solar system, saying it's "like getting a message in a bottle from a distant location." CNN reports: Dr. Abraham Loeb, the chair of the Department of Astronomy at Harvard University, and his co-author Amir Siraj, studied the velocity of objects entering the Earth's atmosphere, which can be used to predict whether the object was traveling in relation to our sun's orbit... Of the three fastest objects on record, the fastest was clearly bound to our sun. The third-fastest couldn't be clearly categorized. But the second-fastest, Loeb says, bore all the hallmarks of being literally out of this solar system. "At this speed, it takes tens of thousands of years for a object to move from one star to another," he says. Since they don't know exactly where it originated, they can't say exactly how old it is, but it could be downright ancient. "To cross the galaxy it would take hundreds of millions of years."

Of all of the possibilities wrapped up in this relatively small object, perhaps the most exciting is the idea that, theoretically, interstellar objects could carry life from other solar systems. "Most importantly, there is a possibility that life could be transferred between stars," Loeb says. "In principle, life could survive in the core of a rock. Either bacteria, or tardigrades (a microscopic, water-dwelling animal); they can survive harsh conditions in space and arrive right to us..." [A]lthough the object detailed in this paper is the first recorded interstellar meteor to hit Earth, the study estimates such objects enter earth's atmosphere every ten years or so, which means there could be a million different interstellar objects floating around our solar system, just waiting to be examined.

If we're going to avoid the worst consequences of climate change, we'll need an energy revolution. But there's a big problem. Making that future a reality will, among other things, require a lot of batteries: batteries to charge our electric cars; batteries to store solar power collected while the sun's up and wind power harnessed when it's gusty out. And as a new report by researchers at the University of Technology Sydney warns, that's likely to drive demand for the metals used to build green batteries -- as well as wind turbines and solar panels -- through the roof.

From a report: In other words the clean tech boom is, at least in the short term, likely to fuel a mining boom. And that won['t come without cost. "We already know about the environmental, social, and human rights impacts extraction is posing to front line communities right now," Payal Sampat, mining program director at Earthworks, which commissioned the new report, told Earther. "It's kind of unimaginable to think about... how it would be considered sustainable to scale up those impacts that many fold and still be reaping benefits."

Much like our smartphones and computers, the high-tech energy infrastructure of tomorrow requires a host of metals and minerals from across the periodic table and the planet. The lithium-ion batteries used in EVs and energy storage require not just lithium, but often cobalt, manganese, and nickel. Electric vehicle engines rely on rare earths, as do the permanent magnet-based generators inside some wind turbines. Solar panels gobbles up a significant share of the world's supply of tellurium, and gallium, along with a sizable fraction of mined silver and indium. Most renewable technologies demand heaps of copper and aluminum.

An anonymous reader quotes a report from Colorado Sun: Now that Democrats are in charge, Colorado's second attempt at its own version of a net neutrality law passed the General Assembly and now heads to Gov. Jared Polis for his certain signature. Keeping internet speeds consistent regardless of whether a customer is streaming video from Comcast or Netflix wasn't the only intent of the Senate Bill 78. The bill also makes internet service providers pay back state grants to build broadband infrastructure if those companies use paid prioritization to favor some internet traffic over others, or slow down speeds for some users.

The Colorado law is similar to the former federal one in that it would prohibit ISPs from prioritizing certain content. It would also force violating ISPs that benefited from state broadband grants to refund all money received in the previous 24 months. After the governor signs the bill into law, Colorado's attorney general would by Oct. 1 create guidelines on how consumers can file complaints about net neutrality violations. "What I was really looking for in this year's bill was the appropriate nexus of action. A lot of the bills we saw getting in trouble in other states, or bills that were facing a lot of opposition, were more about sending a message of net neutrality instead of looking for a fulcrum point for state action," said Sen. Kerry Donovan, a Democrat from Vail who sponsored last year's bill and wrote this year's bill. "This bill says that if you're going to ask to be funded by the people in Colorado directly out of their paycheck then you need to adhere to these principles."

William Robinson writes: The Hayabusa2 Japanese spacecraft on Friday dropped an explosive on the Ryugu asteroid (named after an undersea palace in a Japanese folktale) to make a crater on its surface. The spacecraft safely evacuated and remained intact after dropping a "small carry-on impactor" made of copper onto the asteroid. The Japan Aerospace Exploration Agency, or JAXA, said that they plan to send Hayabusa2 back to the site later, when the dust and debris settle, for observations from above and to collect samples from underground that have not been exposed to the sun or space rays. If successful, it would be the first time a spacecraft has taken such materials. In a 2005 "Deep Impact" mission to a comet, NASA observed fragments after blasting the surface but did not collect them.

Joseph Tsidulko, writing for CRN: Oracle asked the U.S. Supreme Court on Wednesday to not review an appellate court's decision finding Google violated Oracle's copyright of the Java platform when building the Android mobile operating system. In that opposition brief, Oracle's attorneys said Google's copyright violation shut Oracle, the Java platform owner, out of the emerging smartphone market, causing incalculable harm to its business. The complex case pitting two Silicon Valley giants against each other has raged on since 2010, and already saw many twists in turns before a circuit court last year reversed a jury decision in favor of Oracle. That prompted Google's appeal to the nation's highest court. Oracle notes Google had previously asked for a writ of certiorari -- the legal term for review by the high court -- in 2015 without success in an earlier phase of the case, and the company argues nothing has changed in the time since.

Oracle believes Google destroyed its hopes of competing as a smartphone platform developer with the Java platform, which enables development and execution of software written in Java, including through APIs that access a vast software library. The lawsuit alleged Google copied those APIs without a proper license. Java was developed at Sun Microsystems, which Oracle acquired in 2010. "Google's theory is that, having invested all those resources to create a program popular with platform developers and app programmers alike, Oracle should be required to let a competitor copy its code so that it can coopt the fan base to create its own best-selling sequel," Oracle's brief states.

The Boring Company's tunnel project in Chicago is "in doubt" (according to the Chicago Tribune), while a project connecting Washington to Baltimore "is waylaid in the environmental-review process."

But it looks like Las Vegas will officially get a tunnel from Elon Musk, CNET reports, "perhaps within this year." The billionaire's Boring Company on Tuesday got the approval from the 14-member board of the Las Vegas Convention and Visitors Authority (LVCVA) to build and operate an underground loop that would carry people in autonomous electric vehicles at the city's convention center.

Musk has responded to the approval in a tweet, saying he'll make the tunnel "operational by end of year," even though the convention center's expansion won't be done until 2021, according to LVCVA's release... A LVCVA spokeswoman said in an email that the underground loop will be ready in 2021 if the contract with the Boring company is approved at LVCVA's board meeting on June 11.
The Las Vegas Sun has more details, pointing out that travellers would be carried in electric vehicles moving through two parallel tunnels, one running in each direction. And that fleet of electric vehicles "could include Tesla's Model X and Model 3 and a vehicle with capacity for about 16 people â" all manufactured by Musk. All the vehicles would be fully autonomous, meaning they won't have backup drivers, and would move at speeds of up to 50 mph."

The mayor of Las Vegas, also a member of the board, actually voted against the tunnel, calling the Boring Company "exploratory at this time" and warning that "we are considering handing over the reins of our most important industry."

An anonymous reader quotes a report from Reuters: A push to launch a high-level study of potentially risky technological fixes to curb climate change was abandoned on Thursday at a U.N. environmental conference in Nairobi, as countries including the United States raised objections. "Geoengineering" technologies, which are gaining prominence as international efforts to curb climate-changing emissions fall short, aim to pull carbon out of the atmosphere or block some of the sun's warmth to cool the Earth. They could help fend off some of the worst impacts of runaway climate change, including worsening storms and heatwaves, backers say. But opponents argue the emerging technologies pose huge potential risks to people and nature, and could undermine efforts to reduce greenhouse gas emissions, not least because many are backed by fossil-fuel interests. Observers at the U.N. Environment Assembly in Nairobi said the Swiss-backed proposal was rejected in part because it called for a "precautionary principle" approach to geoengineering the climate. That principle says great care must be taken in starting activities that have unclear risks for human health or the environment. The United States, Saudi Arabia and Brazil were among the strongest opponents of the proposal, with Japan also expressing reservations.

That's the finding presented by a team of scientists who have published their results this week in an article in the magazine Physics Today. From a report: They explain that our methods of calculating which planet is "the closest" oversimplifies the matter. But that's not all. "Further, Mercury is the closest neighbor, on average, to each of the other seven planets in the solar system," they write. Wait -- what?

Our misconceptions about how close the planets are to one another comes from the way we usually estimate the distances to other planets. Normally, we calculate the average distance from the planet to the Sun. The Earth's average distance is 1 astronomical unit (AU), while Venus' is around 0.72 AU. If you subtract one from the other, you calculate the average distance from Earth to Venus as 0.28 AU, the smallest distance for any pair of planets. But a trio of researchers realized that this isn't an accurate way to calculate the distances to planets. After all, Earth spends just as much time on the opposite side of its orbit from Venus, placing it 1.72 AU away.

One must instead average the distance between every point along one planet's orbit and every point along the other planet's orbit. The researchers ran a simulation based on two assumptions: that the planets' orbits were approximately circular, and that their orbits weren't at an angle relative to one another.

pgmrdlm shares a report from CNN: Last May, Opportunity took a look around Perseverance Valley on the inner slope of Endurance Crater's western rim. The valley is about the length of two football fields and it's full of descending shallow troughs. Ironically, Perseverance Valley became Opportunity's final resting place when a planet-encircling dust storm took over Mars in June, blocking the sun from reaching the rover's solar panels. Engineers lost contact on June 10 and persistently sent more than a thousand signals and commands to the rover over eight months until they realized the mission was over on February 13. But before those dark days, Opportunity acted like a tourist, snapping 354 photos between May 13 and June 10 that would create one last beautiful panorama of the place it will forever call home. "This final panorama (embedded in the report) embodies what made our Opportunity rover such a remarkable mission of exploration and discovery," said Opportunity project manager John Callas of NASA's Jet Propulsion Laboratory. "To the right of center you can see the rim of Endeavour Crater rising in the distance. Just to the left of that, rover tracks begin their descent from over the horizon and weave their way down to geologic features that our scientists wanted to examine up close. And to the far right and left are the bottom of Perseverance Valley and the floor of Endeavour crater, pristine and unexplored, waiting for visits from future explorers."

An anonymous reader quotes a report from the BBC: I've had one desire since I was born; to see my body ripped and torn. The lyrics of death metal band Bloodbath's cannibalism-themed track, Eaten, do not leave much to the imagination. But neither this song -- nor the gruesome lyrics of others of the genre -- inspire violence. That is the conclusion of Macquarie University's music lab, which used the track in a psychological test. It revealed that death metal fans are not "desensitized" to violent imagery. The findings are published in the Royal Society journal Open Science. How do scientists test people's sensitivity to violence? With a classic psychological experiment that probes people's subconscious responses; and by recruiting death metal fans to take part. The test involved asking 32 fans and 48 non-fans listen to death metal or to pop whilst looking at some pretty unpleasant images.

Lead researcher Yanan Sun explained that the aim of the experiment was to measure how much participants' brains noticed violent scenes, and to compare how their sensitivity was affected by the musical accompaniment. To test the impact of different types of music, they also used a track they deemed to be the opposite of Eaten. "We used 'Happy' by Pharrell Williams as a [comparison]," said Dr Sun. Each participant was played Happy or Eaten through headphones, while they were shown a pair of images -- one to each eye. One image showed a violent scene, such as someone being attacked in a street. The other showed something innocuous -- a group of people walking down that same street, for example. "If fans of violent music were desensitized to violence, which is what a lot of parent groups, religious groups and censorship boards are worried about, then they wouldn't show this same bias. "But the fans showed the very same bias towards processing these violent images as those who were not fans of this music."

Traces of an enormous solar storm that battered the atmosphere and showered Earth in radioactive particles more than 2,500 years ago have been discovered under the Greenland ice sheet. The Guardian reports: Scientists studying ice nearly half a kilometer beneath the surface found a band of radioactive elements unleashed by a storm that struck the planet in 660BC. It was at least 10 times more powerful than any recorded by instruments set up to detect such events in the past 70 years, and as strong as the most intense known solar storm, which hit Earth in AD775. The discovery means that the worst-case scenarios used in risk planning for serious space weather events underestimate how powerful solar storms can be.

Raimund Muscheler, a professor of quaternary sciences at Lund University in Sweden, and his team analyzed two ice cores drilled from the Greenland ice sheet and found that both contained spikes in isotopes of beryllium and chlorine that date back to about 660BC. The material appears to be the radioactive remnants of a solar storm that battered the atmosphere. The scientists calculate that the storm sent at least 10 billion protons per square centimeter into the atmosphere. "A solar proton event of such magnitude occurring in modern times could result in severe disruption of satellite-based technologies, high frequency radio communication and space-based navigation systems," they write in Proceedings of the National Academy of Sciences.

Facebook is suing Andrew Gorbachov and Gleb Sluchevsky, of Ukraine, who worked for a company called Web Sun Group that developed "data-grabbing" quizzes for its social media site. The malicious quiz apps were used to harvest thousands of users' profile data. "The firm says anyone who wanted to take the quizzes was asked to install browser extensions, which then lifted data ranging from names and profile pictures to private lists of friends," reports the BBC. "These were installed about 63,000 times between 2016 and October 2018, it says." From the report: The quizzes, with titles such as "What does your eye color say about you?" and "Do people love you for your intelligence or your beauty?", gained access to this information via the Facebook Login system -- which enables connections between third party apps and Facebook profiles. While the system is intended to verify that such connections are secure, in this case, Facebook says, users were falsely told the app would retrieve only a limited amount of public data from their profiles. "In total, defendants compromised approximately 63,000 browsers used by Facebook users and caused over $75,000 in damages to Facebook," the company said in court documents first published by online news site The Daily Beast. The documents accuse the two men of breaking US laws against computer hacking as well as breaching Facebook's own terms of use.

"The Tennessee Star claims to be the 'most reliable' online local paper in the state," reports Salon. "In fact it's just a GOP front." An anonymous reader quotes their report:
An investigation by the fact-checking outlet Snopes found that several new local news websites are actually being launched by Republican consultants whose company is funded in part by the candidates the sites cover. Politico first reported last year that Tea Party-linked conservative activists Michael Patrick Leahy, Steve Gill and Christina Botteri were behind the "Tennessee Star," a website that purported to be a local news website but mostly posted content licensed from groups linked to big Republican donors. Snopes discovered that the trio has since launched similar sites in other battleground states ahead of the 2020 elections: the Ohio Star and the Minnesota Sun...

The group behind the sites does not appear content with just three outlets. According to Politico, Leahy has purchased domain names associated with Missouri, New England, the Dakotas, Michigan, North Carolina, Pennsylvania, Virginia and Wisconsin, most of which are electoral battleground states that will be vital in 2020.

Kathleen Bartzen Culver, who heads the Center of Journalism Ethics at the University of Wisconsin at Madison, told Snopes that political operatives are free to launch their own news platforms, but it's a problem if they are trying to deceive readers into believing the sites are nonpartisan local news. "I have no problem with advocacy organizations creating content that reinforces the positions they take on public policy issues on the left, right or center. The issue comes in when they're not transparent about that advocacy," Culver said... "The information sphere is so polluted right now that the average citizen has trouble telling what is real and what is not," Culver told Snopes. "I find that very troubling within a democracy."

One of the prototypes Alphabet's Sidewalk Labs is working on for its planned neighborhood on Toronto's waterfront is a hexagonal paving system. "The slabs are porous and heated, which may keep snow and ice at bay without salting," reports Engadget. "They're easy to replace, and include LED lights that can, for instance, help direct traffic flow during construction or mark street closures." From the report: Sidewalk will also demonstrate what it's calling a Building Raincoat, an awning it says will help protect sidewalks from wind, rain, sun and snow to make outdoor space usable throughout the year. It attaches to the sides of buildings and is fixed to ground anchors. It's made from a durable, lightweight and transparent plastic called ETFE (Ethylene Tetrafluoroethylene).

In addition, Sidewalk will have a number of art installations at the public event, which "use lighting, projection mapping, mud and other techniques to reflect on relationships between humans and animals in public space, and the broader connection of ecology and urbanism." Some of the works will be projected onto the awning. Along with the prototypes, Sidewalk will discuss some of its broader ideas about how to make its neighborhood livable and accessible, in part through affordable housing and its transit system.

Prominent astronomer Dr Scott Sheppard, of the Carnegie Institution for Science in Washington D.C., has discovered a new object in the distant reaches of our solar system and given it the name FarFarOut. "At 140 times further away from the sun than our own planet is, the newly identified body -- if its discovery is confirmed -- will become the furthest known object in our solar system," reports The Guardian. Sheppard's discovery was made after his team was analyzing astronomical data to track down Planet Nine, a yet-to-be-discovered body thought to have 10 times the mass of Earth. From the report: Sheppard said he made the discovery of FarFarOut when a lecture he was due to give on his team's work was postponed and he went back to analyzing his data. He said FarFarOut was somewhat mysterious. "It is very faint; it is on the edge of our ability to detect it," Sheppard said. "We don't know anything about the orbit of this object, we just know it is far, far out." Sheppard said further observations were in the offing to shed more light on the find. The current record holder -- a dwarf planet at 120 times the Earth-sun distance -- was named merely FarOut when it was spotted by the same team in December last year.

An anonymous reader writes from a report via NPR: Netflix announced this week that it has acquired the rights to stream Chinese sci-fi blockbuster "The Wandering Earth," which has already grossed more than $600 million globally and hit number two in the all-time Chinese box office rankings since it was released in theaters Feb. 5. Netflix will translate the movie into 28 languages and release it in more than 190 countries. The movie, based on a short story by Hugo award winner Liu Cixin (author of "Three Body Problem" and "Ball Lighting") is set in a distant future in which the earth is about to be devoured by the sun. Using propulsive engines, humans turn earth into a spaceship and try to launch it out of the solar system and the planet is saved by a Chinese hero (rather than American ones as typically seen in Hollywood sci-fi movies.)

For China's film industry, the release marks a major milestone. "Filmmakers in China see science fiction as a holy grail," Raymond Zhou, an independent critic, told The New York Times. "It's like the coming-of-age of the industry." Two sci-fi movies, "The Wandering Earth" and "Crazy Alien," which is also inspired by Liu's work, topped this Chinese New Year movie season. Inkoo Kang wrote at Slate that the film "understands what American blockbusters are still loath to admit: Responding to climate change will pose infrastructural challenges on a massive order and require drastic measures on a planetary scale. Perhaps it takes a country like China, which is accustomed to a manic rate of construction and grandness of organizational possibility, to seriously consider how dramatically humanity will have to reimagine our ways of life to survive such a catastrophic force."

"Oumuamua, the first object ever seen passing through our solar system from interstellar space, was thought to be emitting gas like a comet to explain its weird motion," reports Syfy Wire, "but a new idea is that the comet is just very, very porous."

Astronomer Phil Plait writes: It was hard to tell what it was; it was too small, faint, and far away to get good observations, and worse, it was only seen on its way out, so it was farther from us literally every day. Then another very weird thing happened: More observations allowed a better determination of its trajectory, and it was found that it wasn't slowing down fast enough. As it moves away, the Sun's gravity pulls on it, slowing it down...but it wasn't slowing down enough. Some force was acting on it, accelerating it very slightly... A new paper has come out that might have a solution, and it's really clever. Maybe 'Oumuamua's not flat. Maybe it's fluffy... [And thus moved by the force of sunlight giving it a tiny push]

When stars are very young, they have a huge disk of material swirling around them; it's from this material that planets form. Out far from the star, where temperatures in the disk are cold, teeny tiny grains of dust and water ice can stick together in funny shapes, creating fractals... Materials made in a fractal pattern can be very porous, and in fact out in that protoplanetary disk around a young star, physical models show that objects can grow fractally until they're as big as 'Oumuamua, and have those extremely low densities needed to account for its weird behavior. So 'Oumuamua doesn't have to be a spaceship. It just has to be a snowflake! A three-dimensionally constructed phenomenally porous low-density snowflake... [T]he new paper suggests it came from a nearby star, and one that's relatively young (less than 100 million years). It formed out in the disk, and got ejected somehow, likely from a planet forming nearby giving it a boost from its gravity.
"I certainly hope we find more beasties like this one," Plait writes. "They can tell us so much about how planets form in other star systems, which is pretty hard to figure out from dozens or hundreds of light years away.

"It's a lot easier when they obligingly send bits of their building materials to us."

Contrary to general belief that Earth's atmosphere stops a bit over 62 miles from the surface, a new study based on observations made over two decades ago by the joint US-European Solar and Heliospheric Observatory (SOHO) satellite shows that it actually extends as far 391,000 miles (630,000 km) or 50 times the Earth's diameter. This makes the Moon a very high altitude aircraft. From a report: Launched on December 2, 1995 atop an Atlas IIAS launcher from Cape Canaveral Air Force Station in Florida, SOHO is parked in the first Lagrange point (L1) 930,000 miles (1.5 million km) from Earth where it has carried out studies of the Sun and the solar winds, and will continue to do so until at least 2020. From this vantage point, the observatory's Solar Wind Anisotropie (SWAN) instrument is able to measure the presence of hydrogen by looking at the Lyman-alpha line in the solar spectrum. And what works for the Sun, works for Earth. By turning SWAN on the Earth at the right times of the year, SOHO was able to detect hydrogen atoms from the atmosphere and measure how far out they extend into what space scientists call the geocorona. While the existence of the geocorona is well known -- the telescope set up by the Apollo 16 astronauts on the Moon even photographed it -- no one was sure how far out it reaches until now.

By looking at data collected by SOHO in the mid 1990s, scientists from Russia's Space Research Institute and elsewhere were able to work out the extent and density of the geocorona. What they found was that sunlight on the day side of the Earth compresses the hydrogen until it reaches a density of 70 atoms per cubic cm at an altitude of 37,000 miles (60,000 km), and on the night side it can expand out until it has a density of only 0.2 atoms per cubic cm at the distance of the Moon's orbit. According to the study leader Igor Baliukin, the geocorona is so tenuous that it poses no hazard to astronauts or spacecraft.

AmiMoJo writes: A new comics series in which Jesus Christ is sent on "a most holy mission by God" to learn "what it takes to be the true messiah of mankind" from a superhero called Sun-Man, has been cancelled by DC Comics. The move follows a petition that called it "outrageous and blasphemous". The Second Coming series, from DC imprint Vertigo, was due to launch on 6 March. Written by Mark Russell and illustrated by Richard Pace, its story followed Jesus's return to Earth. "Shocked to discover what has become of his gospel," he teams up with a superhero, Sun-Man, who is more widely worshipped than him.