Analog astronauts: How living underwater can prepare humans for space missions
How living underwater can prepare humans for space missions
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Clouds on a lava planet challenge what astronomers expected
A rocky lava planet once thought to be too extreme to have an atmosphere appears to be wrapped in one with a reflective layer of vaporized silicate mineral clouds, the same family of compounds that make up quartz and sand.
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NASA Invites Media to Moon Landing Simulation Experience in California
Members of the media are invited to tour a new lunar landing simulator at NASA’s Ames Research Center in California's Silicon Valley on Thursday, Oct. 29, and Friday, Oct. 30.
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2026 October 26 – M42: The Great Nebula in Orion
APOD Science APOD 2026 October 26 – M42: The… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with…
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On this day in space! Oct. 26, 2004: Cassini spacecraft takes 1st-ever closeup photos of Saturn moon Titan
On Oct. 26, 2004, NASA's Cassini spacecraft took the first close-up images of Saturn's largest moon Titan. Here's why it mattered.
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Laser-blasted plasma shows how instabilities could heat the sun's corona
From its visible surface, the sun radiates heat at a relatively cool temperature of 5,800 Kelvin. Yet within the thin outer layer of the sun's atmosphere known as the corona, electrons can reach temperatures of millions of degrees, for reasons astronomers have…
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NASA’s X-59 Aircraft and Test Pilot
NASA test pilot Mike Lippert poses for a photo ahead of his first time flying the agency’s X-59 quiet supersonic research aircraft on Oct. 21, 2026. The X-59 has flown numerous times since its inaugural flight in November 2025; its first supersonic flight was on…
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Hunting Red Leaves with Satellites
A modern satellite makes it possible to pursue the ancient tradition of leaf-peeping in a whole new way.
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Darth Vader wields the Infinity Gauntlet in the first-ever official 'Star Wars' & 'Marvel' crossover
If you only knew the power of the infinity stones!
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Stellar collisions may have been common when the universe was young
In our solar system's corner of the galaxy, stars rarely collide. It makes sense: Space is vast, and stars have room to roam. Even in most of the present-day universe, stellar collisions are rare. The James Webb Space Telescope, however, peers deep…
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NASA, USDA Sign Agreement Advancing Earth Science, Agriculture
NASA and the U.S. Department of Agriculture (USDA) have signed a Memorandum of Understanding expanding cooperation in Earth observation, geospatial analytics, and advanced data technologies, supporting USDA’s data modernization plan for United States agriculture. “NASA develops some of the most advanced sensing, computing, and analytical…
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APOD: 2026 October 25 – Dark Matter in a Simulated Universe
APOD Science APOD APOD: 2026 October 25 – Dark… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with…
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NASA ends Swift space telescope mission after failed rescue attempt
NASA has officially ended the mission of its Swift Observatory, after a private satellite failed to meet up with the aging spacecraft in orbit.
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JWST and ALMA reveal a dusty, rapidly growing black hole in the early universe
A new study reveals a dust-reddened quasar from a time when the universe was less than a billion years old. Located at a redshift of 6.5488, the object J1440+0019 contains a rapidly accreting supermassive black hole with a mass of about 1.1…
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NASA, Partners Accelerate Lander Development for 2028 Moon Missions
As NASA returns humans to the lunar surface and establishes a long-term presence on our closest celestial neighbor, the agency and commercial human landing system providers Blue Origin and SpaceX have streamlined the designs and changed both concepts of operations for its future crewed landers.…
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APOD: 2026 October 24 – Rosetta’s Selfie
APOD Science APOD APOD: 2026 October 24 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a…
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'Donnie Darko' at 25: How a giant rabbit, time loops, and teen angst became a sci-fi cult classic
"28 days, 6 hours, 42 minutes, 12 seconds. That is when the world will end."
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FAST and Arecibo point to possible dark galaxy with vast hydrogen reservoir
Astronomers have found a vast reservoir of hydrogen with something conspicuously missing: detectable starlight. The object, called AGC 322753, contains roughly 2 billion times the sun's mass in neutral hydrogen, a potential supply of material for making stars. Its radio signal suggests…
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NASA’s Artemis III Mission to Test Future Moon Lander Operations
Before astronauts return to the lunar surface, NASA will first conduct one of the most ambitious and complex test missions in the agency’s history. Launching in 2027, Artemis III will send NASA astronauts Randy Bresnik, Frank Rubio, Andre Douglas, and ESA (European Space Agency) astronaut…
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NASA’s Swift Mission Ends, Leaves Behind Scientific Bonanza
NASA’s Neil Gehrels Swift Observatory has ended its science mission now that the spacecraft is orbiting less than 171 miles (275 kilometers) above Earth’s surface. The greater atmospheric drag at this height prevents the satellite’s telescopes from steadily gazing at their astronomical targets. Swift conducted…
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Stuck for a Halloween outfit? Set phasers to stunning with the best Star Trek costumes
Halloween is just round the corner, but if you hurry, you can beam down these superb Star Trek outfits, from old-school Star Trek through to The Next Generation and Discovery.
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Lumina simulation brings the early universe to life on a record-breaking scale
The James Webb Space Telescope (JWST) and Nancy Roman Space Telescope are revealing the universe's earliest chapters in detail. To help astronomers understand what they are seeing, researchers at the Center for Astrophysics | Harvard & Smithsonian have developed "Lumina," one of…
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Record breaker! Astronomers spot powerful cosmic explosion that lasted 27 days
Astronomers have spotted a remarkable gamma-ray burst that's a real Incredible Hulk compared to other cosmic explosions of the same type.
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Milky Way's disk grew 'upside down,' with younger stars forming in ever-thinner layers
The Milky Way is home to hundreds of billions of stars arranged in a glorious spiral pattern. But beyond the obvious spiral, our galaxy has other physical characteristics. It's divided into a galactic bulge, a galactic disk and a galactic halo.
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SpaceX ignites giant Super Heavy booster engines ahead of daring Starship launch (video)
SpaceX conducted a static-fire test with its Super Heavy boosters B22 on Sunday (Oct. 25), beginning a test campaign to ready the giant rocket for Starship's Flight Test 15.
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How flare ribbons reveal hidden solar explosions on the sun
Many topics in astronomy and astrophysics are esoteric. There's not much of a relationship between something like the supermassive black hole at the center of the Milky Way and the life of a regular person going about their business. But the sun…
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Glowing 'cauldron' of new stars | Space photo of the day for Oct. 26, 2026
The James Webb Space Telescope captured a spectacular star-forming region glowing 161,000 light-years from Earth in a satellite galaxy of the Milky Way.
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NASA adopting Apollo's urgency to build a moon base and land astronauts within 2 years
NASA is moving fast on its plans to build a moon base and return astronauts to the lunar surface in as little as two years.
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Rubin telescope should find more of Earth's mysterious 'mini-moons' — including some we can study up close
Earth’s tiny, temporary moons could become some of the easiest asteroid targets for future missions. And we'll likely find more of them soon, thanks to the Rubin telescope.
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Everyday Mylar turned into a promising insulator for lunar habitats
Establishing a long-term presence on the moon will require solving challenges that are easy to overlook on Earth. Lunar temperatures, for instance, can vary from hundreds of degrees below zero to boiling, making effective insulation essential for lunar habitats.
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October full 'Hunter's Moon' dazzles in spectacular photos from around the world
Feast your eyes on the best photos of October's full 'Hunter's Moon'.
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Stellar collision may explain why Orion Nebula's planet-forming disks appear younger than its stars
The Orion Nebula is a large star-forming region visible to the naked eye. Some of the young stars in the nebula are surrounded by disks of gas and dust in which planets form. Radiation from the massive central star, 1 Ori C1…
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'More missions, more often': NASA is overhauling how it selects science missions
NASA is overhauling how it selects and develops science missions, with changes intended to reduce costs, streamline competition and get missions into space faster.
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Black holes spinning near maximum rate could split in two, calculations suggest
Two black holes can collide and merge into one. But could the opposite happen: could a single black hole split into two smaller ones? That question is explored in a new theoretical study: "When Black Holes Admit Pair-of-pants Topologies," published in the…
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On this day in space! Oct. 25, 1671: Astronomer Giovanni Cassini discovers Iapetus, Saturn's 'yin-yang' moon
On Oct. 25, 1671, the Italian astronomer Giovanni Cassini discovered a new moon at Saturn! Here's why it mattered.
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ALMA spots 'dragon egg' that may represent the earliest stages of massive star formation
Astronomers identified an exceptionally tiny core that may represent an early stage in the formation of a massive star. Located in an infrared-dark area called Dragon Cloud, the core is nicknamed the "dragon egg." The paper, accepted for publication in Astronomy &…
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October's 'Hunter's Moon' stalks into the autumn sky tonight: Here's what you need to know
The October full moon rises on Oct. 25. Here's how to see it, why it's called the "Hunter's Moon" and everything else you need to know about the lunar milestone.
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Artemis I: Crystals of experimental detectors record radiation doses near the moon
Do cosmic radiation doses near the moon differ significantly from those received by astronauts in low Earth orbit? Experimental lithium fluoride detectors, installed aboard the Orion spacecraft during the Artemis I mission, have now made it possible to obtain preliminary estimates.
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This Week In Space podcast: Episode 233 — The Artemis Generation
On Episode 233 of This Week In Space, Tariq Malik and Rick Jenet are joined by Dr. Amanda Smith-Hackler, with the Universities Space Research Association, about entering the space workforce.
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Pedal to the metal: NASA's Psyche heads toward asteroid belt
With a successful Mars gravity assist in its rearview mirror, NASA's Psyche spacecraft has fired up its thrusters and is accelerating toward the metal-rich asteroid of the same name. During the first leg of its journey, following an October 2023 launch, the…
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On this day in space! Oct. 24, 1946: V-2 rocket takes 1st photos of Earth from space
On October 24, 1946, a V-2 rocket captured the first-ever photo of Earth from space. Here's why it mattered.
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NASA's Hubble charts path for Roman with gravitational lenses
A sweeping barred spiral galaxy marks the spot in this image, but the real treasure is the gravitational lens in the lower-right corner, where a distant background galaxy is being magnified and distorted by the gravity of a closer galaxy.
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'Star Trek: Strange New Worlds' was afraid to say anything in season of gimmicks
The fourth season of "Star Trek: Strange New Worlds" was one giant gimmick: shoving "Trek" into as many genres as possible and often directly adapting classic films from those genres.
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A mineral from the inside of planets reveals a surprising lesson: How you push matters
In the deepest region of the Earth's mantle, just above the core, much of the material consists of crystals of magnesium oxide. In larger rocky exoplanets called super-Earths, the higher pressures in the lower mantle may drive magnesium oxide to transform into…
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Medusa's eye, Halloween fireballs and more: 5 skywatching targets to look out for this spooky season
Five spooky skywatching targets perfect for naked eye stargazing this Halloween!
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Autonomous triangular modules could build tomorrow's mega-observatories
Private companies are getting better at launching more mass into space with larger rockets. But there is still a major constraint on the size of objects we can get into orbit—fairing size. This places physical constraints on the overall shape of what…
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SpaceX launches Starlink satellites from California as Falcon 9 cadence slows (video)
SpaceX sent 27 more of its Starlink broadband satellites to orbit today (Oct. 23), in its first Starlink launch in 11 days.
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Webb captures stars in the early stages of life in a nearby stellar nursery
The NASA/ESA/CSA James Webb Space Telescope continues to reveal hidden parts of the cosmos with its advanced suite of infrared instruments. In a newly released image, Webb revealed many stars previously hidden by the dust clouds of NGC 7129, a stellar nursery…
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NASA lays out plan for Artemis 3 moon-lander test flight —but when will it launch?
NASA just gave us our best look yet at its Artemis III moon-lander test flight, which is scheduled to launch to Earth orbit next year. But a firm liftoff date has not yet been announced.
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Webb image reveals young stars brewing in a nebulous cauldron
In this Picture of the Month from the NASA/ESA James Webb Space Telescope, we visit a turbulent cauldron of star formation to see what is brewing inside dense clumps of gas. This is a star-forming region named LHA 120-N 159, or simply…
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On this day in space! Oct. 23, 2007: NASA launches Harmony module to ISS on STS-120 space shuttle mission
On October 23, 2007, the space shuttle Discovery launched the Harmony module to the International Space Station. Here's why it mattered.
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Supermassive black holes ejected from galactic centers? Quasar survey supports decade-old prediction
By analyzing data on around 100,000 quasars, or extremely luminous galactic nuclei, researchers at Eötvös Loránd University (ELTE) have found statistical evidence that some supermassive black holes at the centers of galaxies are ejected from their positions after forming. The relationship now…
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Halley's Comet dazzles from afar in spectacular astrophoto of Orionid meteor shower
This incredible composite image of Orionid meteors was captured as Earth passed through the debris trail shed by Halley's Comet.
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Black hole observations uncover evidence of solar storm–like magnetic eruptions
Technion researchers have presented evidence for the existence of solar-storm-like outbursts near supermassive black holes, which can be a million times larger than the sun or more. The phenomenon was discovered in the vicinity of the black hole in the galaxy NGC…
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Never finishing the fight: Where did Xbox go wrong with Halo?
After a failed soft reboot and a remake of the original, the Halo universe is facing yet another major creative shift. But has Xbox learned any lessons this time?
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New study traces van Gogh's famed 'Starry Night' to an actual night sky from 1889
Scientists doubling as art detectives have traced Vincent van Gogh's "The Starry Night" to a celestial scene that suggests a new date for one of the world's most famous paintings.
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Private Griffin moon lander gets put to the test | Space photo of the day for Oct. 23, 2026
The robotic Griffin lunar lander has passed a host of critical tests ahead of its first-ever moon mission, which is scheduled to launch later this year.
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There should be black holes in our neighborhood. Can we find them?
Scientific estimates show that there should be between about 100 million and 1 billion stellar-mass black holes in the Milky Way. But they aren't easy to locate. They're not like supermassive black holes (SMBH) at the centers of galaxies. Those are usually…
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'Stupendously large black holes' aren't a major component of dark matter, study finds
Black holes more massive than entire galaxies are not a major component of dark matter, the mysterious stuff that's thought to make up most of the matter in the cosmos, a new study finds.
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Curtain-like plasma structures explain solar jets' apparent spinning in simulations
An international team of scientists from the University of Sheffield and the Indian Institute of Astrophysics, led by a postdoctoral research fellow from the University of Newcastle, Australia, has discovered that solar jets called spicules, which are 6–8 Mm long, take the…
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Rocket Lab launches 3 'Hawk' satellites to orbit to gather signals intelligence (video)
Rocket Lab launched a trio of private signals-intelligence satellites to orbit today (Oct. 21), the 19th mission of the year for the California-based company.
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Are 'mega-Earths' real? Stellar activity may explain these oversized rocky worlds
A new study suggests that some of the heaviest rocky planets ever reported may not be as heavy as they look. These so-called 'mega-Earths,' rocky planets weighing more than about 10 Earths, could be an illusion created by activity on their host…
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Space debris: Are we on track for true sustainability? (op-ed)
Space is a critical infrastructure layer, underpinning nearly all systems that enable modern life as we know it. It’s therefore critical to maintain a safe and clean orbital environment.
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NASA's CASALS instrument bridges gaps in 3D maps of Earth's surface
A team of researchers at NASA's Goddard Space Flight Center (GSFC) has developed a new instrument designed to eliminate blind spots between lines of lidar data on Earth's surface. Built with support from NASA's Earth Science Technology Office (ESTO), the Concurrent Artificially-intelligent…
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Europe's Space Rider vehicle comes crashing down during drop test
The full-scale prototype of Europe's Space Rider orbiter failed to deploy its parachute during a drop test earlier this month, but ESA officials hope the setback won't delay progress toward its first reusable spacecraft.
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Hubble observations challenge supernova winds' role in cosmic reionization
An international team of researchers, including members from the University of Michigan, has revealed surprising results that could rewrite our understanding of a key transition in the early universe.
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On this day in space! Oct. 22, 1992: Ashes of 'Star Trek' creator Gene Roddenberry launch into space on NASA shuttle
On Oct. 22, 1992, the space shuttle Columbia launched into space with the ashes of Gene Roddenberry, the creator of "Star Trek." Here's why it mattered.
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Reexamined Viking 2 signal reveals possible marsquake from region active decades later
Earthquakes and the seismic waves they generate provide some of the best clues to Earth's interior. To extend that success to other worlds, scientists placed seismometers on the Apollo missions to the moon and on the Viking Mars landers, which reached Mars…
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After Starshield interruption, Ukraine wants to build its own satellite communication network with ICEYE and Nokia
Ukraine's military just signed a letter of intent with Nokia and the Finnish satellite maker ICEYE to look into developing a sovereign satellite-communication system for the war-torn nation.
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Astronomers uncover the engine behind the most powerful stellar flares in the Kepler field
A new study led by researchers at the Konkoly Observatory of the HUN-REN Research Centre for Astronomy and Earth Sciences (HUN-REN CSFK) in Budapest has revealed what makes a distant red giant star the most explosively active in the entire Kepler field—and…
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The 2027 total solar eclipse will plunge these 10 ancient Egyptian temples and monuments into darkness
The "eclipse of the century" will plunge some of ancient Egypt's most spectacular sites into darkness on Aug. 2, 2027. These temples, tombs and monuments are inside the path of totality.
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Van Gogh's 'The Starry Night' depicts the sky on July 22, 1889, researchers find
Researchers think they might have pinpointed the exact night sky that we see depicted in Vincent van Gogh's iconic painting "The Starry Night."
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'Cabin leak suspected': Artemis II astronaut reveals how a warning nearly derailed NASA's epic moon mission
Victor Glover recalls how a suspected cabin leak warning came just 15 minutes before a crucial engine burn — and why receiving it just five minutes later could have changed everything.
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Australia's bizarre 'Spider Crater' seen from orbit | Space photo of the day for Oct. 22, 2026
A satellite image of "Spider Crater" in Western Australia.
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Next Mass Effect game cancelled as EA shuts down legendary sci-fi RPG studio BioWare
The legendary RPG studio behind classics such as Star Wars: Knights of the Old Republic, Mass Effect, and Dragon Age is no more.
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Watch NASA's update on accelerating Artemis moon plans today
NASA will provide an update about its Artemis III mission and its plans to land astronauts on the moon during a press conference today (Oct. 23). Here's how to watch it live.
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On this day in space! Oct. 21, 2008: India launches its 1st mission to the moon with Chandrayaan-1
1, 2008, the Indian Space Research Organization launched its first mission to the moon. Here's why it mattered.
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Sci-fi legend Alan Dean Foster on his new futuristic adventure 'Lost On Paradise': 'It's paradise until you get there, and then maybe you mess it up' (interview)
'Maybe Paradise isn’t always Paradise.'
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"A great budget lens for astrophotography, the sharpness produced at f/1.8 and f/2.8 is exactly what you want." Viltrox AF 16mm f/1.8 FE lens review
The Viltrox AF 16mm f/1.8 FE is an impressive ultra-wide-angle prime lens offering great handling, build quality and image quality for an affordable price.
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Space botanist conducts plant experiments in orbit | Space photo of the day for Oct. 21, 2026
NASA astronaut Luke Delaney conducts botany experiments on the ISS.
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