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Yesterday β€” 11 May 2026Main stream

Rocket Lab Reports Growing Demand for Commercial Space Products. Stock Surges 34%

10 May 2026 at 11:34
For just the first three months of 2026, Rocket Lab's launch business reports $63.7 million in revenue, reports CNBC β€” plus another $136.7 million from its space systems business. Besides beating Wall Street's expectations, Rocket Lab also announced that its backlog has more than doubled from a year ago to $2.2 billion, and that it's buying space robotics company Motiv Space Systems. Friday its stock price shot up 34% in one day... Rocket Lab's stock has more than quadrupled over the past year, benefiting from skyrocketing demand for businesses tied to the space economy ahead of SpaceX's hotly anticipated IPO later this year. Demand for space systems and satellites is also escalating as President Donald Trump pursues his ambitious Golden Dome missile defense project and NASA's crewed Artemis missions rev up. Rocket Lab said Thursday that it signed its largest contract ever with a confidential customer for its Neutron and Electron rockets through 2029, weeks after landing a $190 million deal for 20 hypersonic test flights... "The demand signal is clear," CEO Peter Beck said on an earnings call with analysts, calling the pace of new product releases from the company this year "relentless".... Rocket Lab's good news lifted other space companies. Firefly Aeropspace and Intuitive Machines both jumped more than 20, while Redwire gained 19%. Voyager Technologies rose 14%. "The company anticipates revenue between $225 million and $240 million during the second quarter."

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Before yesterdayMain stream

Astronomers May Have Detected an Atmosphere Around a Tiny, Icy World Past Pluto

By: BeauHD
5 May 2026 at 03:00
"The Associated Press is reporting on a new study in Nature Astronomy suggesting that a tiny, icy world beyond Pluto harbors a thin, delicate atmosphere that may have been created by volcanic eruptions or a comet strike," writes longtime Slashdot reader fahrbot-bot. From the report: Just 300 miles (500 kilometers) or so across, this mini Pluto is thought to be the solar system's smallest object yet with a clearly detected global atmosphere bound by gravity, said lead researcher Ko Arimatsu of the National Astronomical Observatory of Japan. This so-called minor planet -- formally known as (612533) 2002 XV93 -- is considered a plutino, circling the sun twice in the time it takes Neptune to complete three solar orbits. At the time of the study, it was more than 3.4 billion miles (5.5 billion kilometers) away, farther than even Pluto, the only other object in the Kuiper Belt with an observed atmosphere. This cosmic iceball's atmosphere is believed to be 5 million to 10 million times thinner than Earth's protective atmosphere, according to the the study [...]. It's 50 to 100 times thinner than even Pluto's tenuous atmosphere. The likeliest atmospheric chemicals are methane, nitrogen or carbon monoxide, any of which could reproduce the observed dimming as the object passed before the star, according to Arimatsu. Further observations, especially by NASA's Webb Space Telescope, could verify the makeup of the atmosphere, according to Arimatsu.

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Scientists Discover 27 Potential New Planets That Orbit Two Stars

By: BeauHD
4 May 2026 at 12:00
Astronomers have identified 27 potential new circumbinary planets -- worlds that orbit two stars, like Star Wars' Tatooine. "To date, only about 18 circumbinary planets ... had been identified in the universe," reports the Guardian. "More than 6,000 planets have been discovered that orbit single stars, like Earth does around the sun." The Guardian reports: In a timely publication for May 4, also known as Star Wars Day, scientists have identified nearly 30 more candidate planets, whose distances range from 650 to 18,000 light years away from Earth. [...] More than half of the stars in the universe exist in binary or multiple star systems. The researchers instead used a method known as "apsidal precession," searching for a wobble between stars that orbit around and eclipse each other. "If we monitor the exact timing of these eclipses ... that can tell us that there's something else going on in the system," said Margo Thornton, the study's lead author and a PhD candidate at UNSW. After eliminating other factors such as the rotation and gravitational pull of the two stars, the team identified 36 star systems out of 1,590 whose behavior could only be explained by a third body. For "27 of those objects, it is possible that they are planet mass," Thornton said. More research into their spectra -- the light they emit -- was needed to formally confirm them as circumbinary planets, she said. "It's just a matter of: what is the mass of it? Is it a planet? Is it a brown dwarf? Is it a star?" The team discovered the potential planets -- which likely range from Neptune-sized to ten times heavier than Jupiter -- using data from Nasa's Transiting Exoplanet Survey Satellite, a planet-hunting space telescope that launched in 2018. The research was published in the Monthly Notices of the Royal Astronomical Society.

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Vercel’s security breach started with malware disguised as Roblox cheats

20 April 2026 at 16:24

Vercel customers are at risk of compromise after an attacker hopped through multiple internal systems to steal credentials and other sensitive data, the company said in a security bulletin Sunday.Β 

The attack, which didn’t originate at Vercel, showcases the pitfalls of interconnected cloud applications and SaaS integrations with overly privileged permissions.Β 

An attacker traversed third-party systems and connections left exposed by employees before it hit the San Francisco-based company that created and maintains Next.js and other popular open-source libraries.Β 

Researchers at Hudson Rock said the seeds of the attack were planted in February when a Context.ai employee’s computer was infected with Lumma Stealer malware after they searched for Roblox game exploits, a common vector for infostealer deployments.

Each of the companies are pinning at least some blame for the attack on the other vendor.

Context.ai on Sunday said that breach allowed the attacker to access its AWS environment and OAuth tokens for some users, including a token for a Vercel employee’s Google Workspace account. Vercel is not a Context customer, but the Vercel employee was using Context AI Office Suite and granted it full access, the artificial intelligence agent company said.Β 

β€œThe attacker used that access to take over the employee’s Vercel Google Workspace account, which enabled them to gain access to some Vercel environments and environment variables that were not marked as sensitive,” Vercel said in its bulletin.Β 

The company said a limited number of its customers are impacted and were immediately advised to rotate credentials. Vercel, which declined to answer questions, did not specify which internal systems were accessed or fully explain how the attacker gained access to Vercel customers’ credentials.Β 

Vercel CEO Guillermo Rauch said customer data stored by the company is fully encrypted, yet the attacker got further access through enumeration, or by counting and inventorying specific variables.Β 

β€œWe believe the attacking group to be highly sophisticated and, I strongly suspect, significantly accelerated by AI,” he said in a post on X. β€œThey moved with surprising velocity and in-depth understanding of Vercel.”

A threat group identifying itself as ShinyHunters took responsibility for the attack in a post on Telegram and is attempting to sell the stolen data, which they claim includes access keys, source code and databases.

The attacker β€œis likely an imposter attempting to use an established name to inflate their notoriety,” Austin Larsen, principal threat analyst at Google Threat Intelligence, wrote in a LinkedIn post. β€œRegardless of the threat actor involved, the exposure risk is real.”

Vercel also warned that the attack on Context’s Google Workspace OAuth app β€œwas the subject of a broader compromise, potentially affecting its hundreds of users across many organizations.” It published indicators of compromise and encouraged customers to review activity logs, review and rotate variables containing secrets.

Context and Vercel said their separate and coordinated investigations into the attack aided by CrowdStrike and Mandiant remain underway.

The post Vercel’s security breach started with malware disguised as Roblox cheats appeared first on CyberScoop.

Blue Origin Rocket Launches, Successfully Reuses Booster - But Loses Satellite

19 April 2026 at 22:50
SpaceNews reports: Blue Origin's New Glenn suffered a malfunction of its second stage on the rocket's third flight April 19, stranding its payload in an unrecoverable "off-nominal" orbit and dealing the company a setback as it seeks to increase its flight rate... AST SpaceMobile had planned to launch 45 to 60 satellites this year for its D2D constellation, but BlueBird 7 is the first to launch since BlueBird 6 launched on an Indian LVM3 rocket in December. AST SpaceMobile still expects to have 45 satellites in orbit by the end of the year, the article notes. (In an earnings call in March, AST SpaceMobile's CEO had promised they'd soon start "stacking" satellites, "batched in groups of either three, four, six or eight in a single launch.") He'd added that "To support our launch cadence during 2026, we expect the New Glenn booster to be reused every 30 days or less..." There's some good news there, SpaceNews points out, since today saw the first successful reflight of a New Glenn first stage rocket: The booster, called "Never Tell Me The Odds" by Blue Origin, touched down on the company's landing platform, Jacklyn, in the Atlantic Ocean nearly nine and a half minutes after liftoff. The booster launched NASA's ESCAPADE Mars mission on the NG-2 flight in November. However, the booster reuse on NG-3 was only partial since the stage's biggest component, its BE-4 engines, was new. "With our first refurbished booster we elected to replace all seven engines and test out a few upgrades including a thermal protection system on one of the engine nozzles," Dave Limp, chief executive of Blue Origin, said in an April 13 social media post. "We plan to use the engines we flew for NG-2 on future flights." The satellite will now be "de-orbited", AST SpaceMobile said in a statement. (They added that "The cost of the satellite is expected to be recovered under the company's insurance policy.") Thanks to long-time Slashdot reader schwit1 for sharing the news.

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A New Computer Chip Could Finally Withstand The Hellscape of Venus

By: BeauHD
14 April 2026 at 11:00
Researchers at the University of Southern California say they've developed a memristor memory device that continued operating at 700 degrees Celsius. "And crucially, 700 degrees was not the limit, it was simply as hot as their testing equipment could go," adds ScienceAlert. "The device showed no signs of failing." From the report: The device is called a memristor and it's a nanoscale component that can both store information and perform computing operations. Think of it as a tiny sandwich with two electrode layers on the outside and a thin ceramic filling in the middle. The team built theirs from tungsten, the metal with the highest melting point of any element, combined with a ceramic called hafnium oxide, and with a layer of graphene at the bottom. Each material can withstand enormous heat. Together, they turned out to be extraordinary. What makes graphene the key ingredient is the way it interacts with tungsten at the atomic level. In a conventional device, heat causes metal atoms to drift slowly through the ceramic layer until they bridge the two electrodes, short circuiting everything and leaving the device permanently broken. Graphene stops that process dead. Its surface chemistry with tungsten is ... almost like oil and water. Tungsten atoms that drift toward the graphene find they simply cannot take hold, no anchor, no short circuit, no failure. The team used advanced electron microscopy and quantum level computer simulations to understand exactly why, turning a single lucky result into a repeatable principle. The findings have been published in the journal Science.

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Particles Seen Emerging From Empty Space For First Time

By: BeauHD
10 April 2026 at 03:00
Longtime Slashdot reader fahrbot-bot shares a report from NewScientist: According to quantum chromodynamics (QCD) -- widely considered to be our best theory for describing the strong force, which binds quarks inside protons and neutrons -- even a perfect vacuum isn't truly empty. Instead, it is filled with short-lived disturbances in the underlying energy of space that flicker in and out of existence, known as virtual particles. Among them are quark-antiquark pairs. Under normal conditions, these fleeting pairs vanish almost as soon as they appear. But if enough energy is injected into a vacuum, QCD predicts they can be promoted into real, detectable particles with measurable mass. Now, the STAR collaboration -- an international team of physicists working at the Relativistic Heavy Ion Collider in Brookhaven National Laboratory in New York state -- has observed this process for the first time. The team smashed together high-energy protons in a vacuum, producing a spray of particles. Some of these particles should be quark-antiquark pairs pulled directly from the vacuum itself, but quarks can never exist alone and immediately combine into composite particles. Quarks and antiquarks are born with their spins correlated -- a shared quantum alignment inherited from the vacuum. The researchers found that this link persists even after the quarks and antiquarks become part of larger particles called hyperons, which decay in less than a tenth of a billionth of a second. Spotting these spin-aligned hyperons in the aftermath of the proton collisions allowed the researchers to confirm that the quarks within them came from the vacuum. The findings have been published in the journal Nature.

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Artemis II Astronauts Pass 100,000 Miles From Earth On Voyage To the Moon

By: BeauHD
4 April 2026 at 03:00
The Artemis II crew has passed 100,000 miles from Earth and is now on a "free-return" path around the moon after a successful "translunar" injection burn. "Ladies and gentlemen, I am so, so excited to be able to tell you that for the first time since 1972 during Apollo 17, human beings have left Earth orbit," NASA's Dr Lori Glaze told a news conference. The Guardian reports: The astronauts -- the Americans Reid Wiseman, Victor Glover and Christina Koch, and a Canadian, Jeremy Hansen -- spent their first day in space performing checks on the spacecraft, which had never carried humans before. Later they had time to speak to US TV networks. "I've got to tell you, there is nothing normal about this," Wiseman told ABC News from the cramped interior of the capsule. "Sending four humans 250,000 miles away is a herculean effort, and we are now just realising the gravity of that." Orion will travel about 4,000 miles (6,400km) beyond the moon before turning back, providing unprecedented and illuminated views of the lunar far side. If all proceeds smoothly, the astronauts will set a record by venturing farther from Earth than any human before -- more than 250,000 miles. The mission is part of a longer-term plan to repeatedly return to the moon, with the aim of establishing a permanent base that will offer a platform for further exploration. After the final engine burn, NASA said Wiseman took two "spectacular" images of Earth. The first photo, called Hello, World, "shows the vast expanse of blue that is the Atlantic Ocean, framed by a thin glow of the atmosphere as the Earth eclipses the Sun and green auroras at either pole," reports the BBC. Another photo shows the view of Earth from inside the Orion spacecraft.

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Quadratic Gravity Theory Reshapes Quantum View of Big Bang

By: BeauHD
31 March 2026 at 07:00
Researchers at the University of Waterloo say a new "quadratic quantum gravity" framework could explain the universe's rapid early expansion without adding extra ingredients to Einstein's theory by hand. The idea is especially notable because it makes testable predictions, including a minimum level of primordial gravitational waves that future experiments may be able to detect. "Even though this model deals with incredibly high energies, it leads to clear predictions that today's experiments can actually look for," said Dr. Niayesh Afshordi, professor of physics and astronomy at the University of Waterloo and Perimeter Institute (PI). "That direct link between quantum gravity and real data is rare and exciting." Phys.org reports: The research team found that the Big Bang's rapid early expansion can emerge naturally from this simple, consistent theory of quantum gravity, without adding any extra ingredients. This early burst of expansion, often called inflation, is a central idea in modern cosmology because it explains why the universe looks the way it does today. Their model also predicts a minimum amount of primordial gravitational waves, which are tiny ripples in spacetime geometry created in the first moments after the Big Bang. These signals may be detectable in upcoming experiments, offering a rare chance to test ideas about the universe's quantum origins. [...] The team plans to refine their predictions for upcoming experiments to explore how their framework connects to particle physics and other puzzles about the early universe. Their long-term goal is to strengthen the bridge between quantum gravity and observational cosmology. The research has been published in the journal Physical Review Letters.

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Jupiter's Lightning May Have the Force of Nuclear Weapons

29 March 2026 at 10:34
How powerful is Jupiter's lightning? Thick clouds cover the view, notes Science magazine. But using an instrument on NASA's Juno spacecraft (orbiting Jupiter for the past decade), researchers determined Jupiter's lightning bolts are 100 to 10,000 times more energetic than earth's: A single bolt of lightning on Earth releases about 1 billion joules of energy. That means the most extreme bolts of jovian lightning carry 10 trillion joules of energy, equivalent to 2400 tons of TNT, or one-sixth the power of the atomic bomb dropped on Hiroshima, Japan. Based on the rates of flashes seen by Juno, storms on this tempestuous world can unleash the force of multiple nuclear weapons every minute... The four storms Juno studied were monstrous, says Michael Wong, a planetary scientist at the University of California, Berkeley and one of the study's authors. There were three flashes per second on average, often emerging from the hearts of storms that are 3000 kilometers across, longer than the distance from New York City to Denver. The researchers used the Hubble Space Telescope (and photographs from Juno's camera) to track Jupiter's storms with such precision that their radiometer could then pick out individual lightning flashes, according to the article. "It's just a massive ball of gas. It makes sense that there's very energetic lightning happening," says Daniel Mitchard, a lightning physicist at Cardiff University who wasn't involved with the new study. But confirming such suspicions "is exciting," he says, because lightning plays an important role in forging complex chemistry β€” including the sort that primordial life is built on. Thanks to Slashdot reader sciencehabit for sharing the article.

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UK Startup Ignites Plasma Inside Nuclear Fusion Rocket

By: BeauHD
28 March 2026 at 03:00
UK startup Pulsar Fusion says it has achieved the first plasma ignition inside a nuclear fusion rocket engine prototype -- a huge step for space travel that could cut missions to Mars "from months-long journeys to just a few weeks," reports Euronews. From the report: Pulsar Fusion revealed the milestone during a live stream at Amazon's MARS Conference, hosted by Jeff Bezos in California this week, with CEO Richard Dinan calling it an "exceptional moment" for the company. The team successfully created plasma - an intensely hot, electrically charged state of matter, often described as the fourth state of matter - using electric and magnetic fields inside its experimental and early prototype "Sunbird fusion exhaust system." [...] The company now plans further testing of its Sunbird system to improve performance. Upcoming upgrades include more powerful superconducting magnets designed to better contain and control plasma.

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Chandra Resolves Why Black Holes Hit the Brakes On Growth

By: BeauHD
25 March 2026 at 07:00
alternative_right shares a report from Phys.org: Astronomers have an answer for a long-running mystery in astrophysics: why is the growth of supermassive black holes so much lower today than in the past? A study using NASA's Chandra X-ray Observatory and other X-ray telescopes found that supermassive black holes are unable to consume material as rapidly as they did in the distant past. The results appeared in the December 2025 issue of The Astrophysical Journal. [...] The team ran tests of the three main possible scenarios currently being considered for the slowdown of black hole growth. These options were: could the decline in black hole growth be caused by less efficient rates of consumption, or by smaller typical black hole masses, or by fewer actively growing black holes? Their analysis of the data, extending over billions of years of cosmic history, led them to the conclusion that black holes are indeed consuming material less rapidly the later they are found after the Big Bang. The researchers expect this trend of slower-growing black holes to continue into the future.

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Meteor Rumbles Over Houston, as Six-Pound Fragment Crashes Into a Texas Home

22 March 2026 at 03:34
"It is the talk of the town today β€” the loud boom, the flash of light in the sky experienced by a lot of folks across the Houston area this afternoon," says a local Texas newscaster. "And then there was this β€” a home in northwest Harris county hit by something that crashed through their roof." Travelling at very high speed, the six-pound meteorite crashed through their roof and through their attic, crashing again through the ceiling of the floor below. It then bounced off the floor, hit the ceiling again β€” and then fell onto the bed. CBS News reports: NASA said in a social media post that the meteor became visible at 49 miles above Stagecoach, northwest of Houston, at 4:40 p.m. local time. The meteor moved southeast at 35,000 miles per hour, breaking apart 29 miles above Bammel, just west of Cypress Station, NASA said. "The fragmentation of the meteor β€” which weighed about a ton with a diameter of 3 feet β€” created a pressure wave that caused booms heard by some in the area," NASA said in the post. Across the Houston area, residents described hearing a low, rumbling sound that many compared to thunder, even though the skies were clear, according to CBS affiliate KHOU. Earlier this week, an asteroid weighing about 7 tons and traveling at 45,000 mph traveled over multiple states. And last June, a bright meteor was seen across the southeastern U.S. and exploded over Georgia, creating similar booms heard by residents in the area.

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NASA's Hubble Unexpectedly Catches Comet Breaking Up

By: BeauHD
21 March 2026 at 07:00
NASA's Hubble Space Telescope unexpectedly captured a rare, early-stage breakup of comet C/2025 K1 (ATLAS) just days after it first began disintegrating. Phys.org reports: "Sometimes the best science happens by accident," said co-investigator John Noonan, a research professor in the Department of Physics at Auburn University in Alabama. "This comet got observed because our original comet was not viewable due to some new technical constraints after we won our proposal. We had to find a new target -- and right when we observed it, it happened to break apart, which is the slimmest of slim chances." Noonan didn't know K1 was fragmenting until he viewed the images the day after Hubble took them. "While I was taking an initial look at the data, I saw that there were four comets in those images when we only proposed to look at one," said Noonan. "So we knew this was something really, really special." Hubble caught K1 fragmenting into at least four pieces, each with a distinct coma, the fuzzy envelope of gas and dust that surrounds a comet's icy nucleus. Hubble cleanly resolved the fragments, but to ground-based telescopes, at the time they only appeared as barely distinguishable, bright blobs. [...] "Never before has Hubble caught a fragmenting comet this close to when it actually fell apart. Most of the time, it's a few weeks to a month later. And in this case, we were able to see it just days after," said Noonan. "This is telling us something very important about the physics of what's happening at the comet's surface. We may be seeing the timescale it takes to form a substantial dust layer that can then be ejected by the gas." The findings have been published in the journal Icarus.

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Asteroid Ryugu Has All of the Main Ingredients For Life

By: BeauHD
17 March 2026 at 11:00
Samples from the asteroid Ryugu contain all five nucleobases -- the key building blocks of DNA and RNA. "This strengthens the idea that asteroids may have brought the ingredients for the first living organisms to Earth long ago," reports New Scientist. From the report: Japan's Hayabusa 2 spacecraft visited Ryugu in 2018, where it shot two projectiles -- one small and one large -- into the surface of the asteroid and collected the resulting debris. It arrived back at Earth with the samples in 2020 and researchers have been analyzing these in detail ever since. Yasuhiro Oba at Hokkaido University in Japan and his colleagues examined two samples, one from the asteroid's surface and one comprised of subsurface materials excavated by the projectiles. In both, the team found all five primary nucleobases, which are the compounds that make up the nucleic acids DNA and RNA when combined with sugars and phosphoric acid. This isn't the first time that nucleobases have been found in asteroid samples: they have been seen in meteorites, too, and in samples from the asteroid Bennu. The researchers did find different abundances of the various nucleobases among the various samples, though, which hints that these compounds might be useful for tracing asteroids and meteorites back to the parent bodies that they broke off from in the distant past, as well as understanding the evolution of those parent bodies over time. The findings have been published in the journal Nature Astronomy.

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Startup Wants To Launch a Space Mirror

By: BeauHD
10 March 2026 at 03:00
A startup called Reflect Orbital wants to launch thousands of mirror-bearing satellites to reflect sunlight onto Earth at night and "power solar farms after sunset, provide lighting for rescue workers and illuminate city streets, among other things," reports the New York Times. From the report: It is an idea seemingly out of a sci-fi movie, but the company, Reflect Orbital of Hawthorne, Calif., could soon receive permission to launch its first prototype satellite with a 60-foot-wide mirror. The company has applied to the Federal Communications Commission, which issues the licenses needed to deploy satellites. If the F.C.C. approves, the test satellite could get a ride into orbit as soon as this summer. The F.C.C.'s public comment period on the application closes on Monday. "We're trying to build something that could replace fossil fuels and really power everything," Ben Nowack, Reflect Orbital's chief executive, said in an interview. The company has raised more than $28 million from investors. [...] Reflect Orbital's first prototype, which will be roughly the size of a dorm fridge, is almost complete. Once in space, about 400 miles up, the test satellite would unfurl a square mirror nearly 60 feet wide. That would bounce sunlight to illuminate a circular patch about three miles wide on the Earth's surface. Someone looking up would see a dot in the sky about as bright as a full moon. Two more prototypes could follow within a year. By the end of 2028, Reflect Orbital hopes to launch 1,000 larger satellites, and 5,000 of them by 2030. The largest mirrors are planned to be nearly 180 feet wide, reflecting as much light as 100 full moons. The company said its goal was to deploy the full constellation of 50,000 satellites by 2035. How much does it cost to order sunlight at night? Mr. Nowack said the company would charge about $5,000 an hour for the light of one mirror if a customer signed an annual contract for 1,000 hours or more. Lighting for one-time events and emergencies, which might require numerous satellites and more effort to coordinate, would be more expensive. For solar farms, he envisions splitting revenue from the electricity generated by the additional hours of light.

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New SETI Study: Why We Might Have Been Missing Alien Signals

9 March 2026 at 07:34
After decades of searching for extraterrestrial intelligence, the nonprofit SETI Foundation has an announcement. "A new study by researchers at the SETI Institute suggests stellar 'space weather' could make radio signals from extraterrestrial intelligence harder to detect." Stellar activity and plasma turbulence near a transmitting planet can broaden an otherwise ultra-narrow signal, spreading its power across more frequencies and making it more difficult to detect in traditional narrowband searches. For decades, many SETI experiments have focused on identifying spikes in frequency β€” signals unlikely to be produced by natural astrophysical processes. But the new research highlights an overlooked complication: even if an extraterrestrial transmitter produces a perfectly narrow signal, it may not remain narrow by the time it leaves its home system... "If a signal gets broadened by its own star's environment, it can slip below our detection thresholds, even if it's there, potentially helping explain some of the radio silence we've seen in technosignature searches," said Dr. Vishal Gajjar, Astronomer at the SETI Institute and lead author of the paper. The researchers created "a practical framework for estimating how much broadening could occur for different types of stars" β€” and accounting for space weather β€” by "using radio transmissions from spacecraft in our own solar system, then extrapolated to other stellar environments." The study's co-author (a SETI Institute research assistant) suggests this coud lead to better-targetted SETI searches. (M-dwarf stars β€” about 75% of stars in the Milky Way β€” actually have the highest likelihood that narrowband signals would get broadened before leaving their system...)

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Scientists Just Doubled Our Catalog of Black Hole and Neutron Star Collisions

9 March 2026 at 00:34
Colliding black holes were detected through spacetime ripples for the first time in 2015 by the Laser Interferometer Gravitational-Wave Observatory (LIGO), notes Space.com: Since then, LIGO and its partner gravitational wave detectors Virgo in Italy and KAGRA (Kamioka Gravitational Wave Detector) in Japan have detected a multitude of gravitational waves from colliding black holes, merging neutron stars, and even the odd "mixed merger" between a black hole and a neutron star... During the first three observing runs of LIGO, Virgo and KAGRA, scientists had only "heard" 90 potential gravitational wave sources. But now they've published new data from the LIGO-Virgo-KAGRA (LVK) Collaboration that includes 128 more gravitatational wave sources β€” some incredibly distant: [Gravitational-Wave Transient Catalog-4.0, or GWTC-4] was collected during the fourth observational run of these gravitational wave detectors, which was conducted between May 2023 and Jan. 2024... Excitingly, GWTC-4 could technically have been even larger, as around 170 other gravitational wave detections made by LIGO, Virgo and KAGRA haven't yet made their way into the catalog. One aspect of GWTC-4 that really stands out is the variety of events that created these signals. Within this catalog are gravitational waves from mergers between the heaviest black hole binaries yet, each about 130 times as massive as the sun, lopsided mergers between black holes with seriously mismatched masses, and black holes that are spinning at incredible speeds of around 40% the speed of light. In these cases, scientists think the extreme characteristics of the black holes involved in these mergers are the result of prior collisions, providing evidence of merger chains that explain how some black holes grow to masses billions of times that of the sun... GWTC-4 also includes two new mixed mergers involving black holes and neutron stars. [LVK member Daniel Williams, of the University of Glasgow in the U.K., said in their statement] "We are really pushing the edges, and are seeing things that are more massive, spinning faster, and are more astrophysically interesting and unusual." The catalog also demonstrates just how sensitive the LVK detectors have become. Some of the neutron star mergers occurred up to 1 billion light-years away, while some of the black hole mergers occurred up to 10 billion light-years away. Einstein's theory of general relativity can be tested with these detections, and "So far, the theory is passing all our tests," says LVK member Aaron Zimmerman, of the University of Texas at Austin. "But we're also learning that we have to make even more accurate predictions to keep up with all the data the universe is giving us." And LVK member Rachel Gray, a lecturer at the University of Glasgow, says "every merging black hole gives us a measurement of the Hubble constant, and by combining all of the gravitational wave sources together, we can vastly improve how accurate this measurement is." In short, says LVK member Lucy Thomas of the California Institute of Technology (Caltech), "Each new gravitational-wave detection allows us to unlock another piece of the universe's puzzle in ways we couldn't just a decade ago."

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AI in Gmail?

22 January 2026 at 04:00
Before I tell you how to turn off AI in Gmail – first a word.Β  Anytime you read β€œthis vendor is reading my private emails,” stop. Email is not secure. Not ever. Never was. If you need to hide a private conversation, email is not the thing to use. Now on with the steps: Log […]
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