Solar System News

October 23, 2026

Top Headlines

Astronauts’ Hearts Just Passed a Surprising Test for Mars

Oct. 21, 2026 A new study tracking 13 astronauts suggests that the human heart may be surprisingly well equipped for a journey to Mars, especially with regular exercise during spaceflight. Researchers found that astronauts' hearts adapted to months of ...

NASA’s Perseverance Mars Rover Just Shattered the All-time Off-world Driving Record

Oct. 21, 2026 NASA’s Perseverance rover has shattered a historic space exploration record, traveling farther across another world than any vehicle before it. Its advanced self-driving system helped it surpass ...

NASA Is Searching for Hidden Caves to Build Its First Moon Base

Oct. 8, 2026 NASA is preparing for humanity’s first Moon base with three investigations that will hunt for underground shelters, uncover hidden ice, and track dangerous conditions on the lunar surface. The findings could reveal how astronauts can survive and ...

This Mysterious Hole on the Moon May Open Into a Giant Cave

Oct. 5, 2026 NASA has selected the GIMLI project to investigate whether the Marius Hill Pit opens into a vast underground cave or lava tube. Using radar, seismic sensors, gravity measurements, and cameras, researchers will search beneath the lunar surface and ...

Powerful Simulations Reveal How the First Stars Changed the Universe

Oct. 3, 2026 Ultra-detailed simulations are showing how the first stars lit up the dark Universe and seeded space with elements such as carbon, oxygen, and iron. The MEGATRON project could bridge JWST observations of the earliest galaxies with chemical clues ...

This Suitcase-sized Spacecraft Could Hear the Universe Before Stars Existed

Sep. 28, 2026 CosmoCube will use the far side of the Moon as a shield from Earth’s radio noise to search for a faint signal from the universe before the first stars existed. The suitcase-sized satellite could reveal how the cosmic dark ages ended and how dark ...

Blood Tests Reveal Why Astronauts Get Constipated in Space

Sep. 28, 2026 Spaceflight may dramatically change the gut within weeks, causing bacteria to break down more protein as food moves more slowly through the intestines. The shift could help explain astronaut constipation and may have wider effects on health, making ...

The Secret to Growing Food on Mars Could Be Fungi

Sep. 25, 2026 Scientists think beneficial fungi could help transform nutrient-poor lunar and Martian regolith into a material capable of supporting crops. By helping plants access nutrients and withstand harsh conditions, these microbes could someday make ...

A Strange Circle on Satellite Maps Turned Out to Be a 390-million-year-old Impact Crater

Sep. 22, 2026 An amateur astronomer searching satellite maps for a Quebec camping spot accidentally discovered a massive ancient impact crater. Scientists later found shatter cones that confirmed the ...

NASA’s Roman Space Telescope Launches to Reveal the Universe’s Darkest Secrets

Aug. 31, 2026 NASA’s Roman Space Telescope has launched on a million mile journey to L2, where it will scan huge portions of the cosmos for clues about dark matter, dark energy, and distant worlds. With survey ...

NASA’s Roman Telescope Will See 100 Times More Sky Than Hubble

Aug. 28, 2026 NASA’s Roman Space Telescope will combine Hubble-like detail with a field of view 100 times larger, giving astronomers a sweeping new way to explore the cosmos. Its observations could uncover hidden planets, map billions of cosmic objects, and ...

NASA Just Used Satellites and Debris to Navigate Without GPS

Aug. 26, 2026 NASA has successfully tested a system that allows satellites to navigate without GPS by using other spacecraft and debris as landmarks in orbit. In just three days, FALCON also improved the known orbits of more than 200 space objects completely ...

Latest Headlines

updated 8:28am EDT

NASA’s Curiosity Rover Reveals a Spectacular New View of Mars With a Mystery on the Horizon

Oct. 22, 2026 NASA’s Curiosity rover has revealed a spectacular new view of mysterious, wind-carved cliffs on Mars that may hold evidence of ancient volcanic ...

NASA Reveals 16 Stunning Galaxies Hiding Cosmic Chaos

Oct. 20, 2026 NASA's stunning new gallery of 16 galaxies reveals colossal black hole jets, explosive star formation, and spectacular cosmic collisions through the combined power of Chandra, James Webb, Hubble, and ...

NASA Solves a Strange Mystery Hidden Inside Asteroid Bennu’s Boulders

Oct. 19, 2026 NASA scientists have finally uncovered why asteroid Bennu loses heat so quickly despite being covered in massive boulders. Samples returned to Earth reveal that its rocks are filled with hidden ...

Astronomers Discover a Ghostly Green Star Unlike Any Known Before

Oct. 19, 2026 Astronomers have uncovered a surprising rainbow of dead stars, including the first known star that would appear genuinely green to human eyes. Researchers found that white dwarfs can glow in ...

NASA’s Webb Reveals the Wild Weather of a Mysterious World 20 Light-Years Away

Oct. 17, 2026 NASA’s James Webb Space Telescope has revealed that a turbulent world 20 light-years away has a surprisingly orderly weather system, with three ...

James Webb Reveals a Strange Bulge in an Alien Planet's Atmosphere

Oct. 16, 2026 Astronomers using the James Webb Space Telescope have discovered that a distant alien planet's atmosphere is surprisingly lopsided. Located 1,300 light-years away, the scorching gas giant WASP-17b ...

Scientists May Have Finally Solved the Mystery of the Moon’s Two Faces

Oct. 14, 2026 Scientists may have solved a long-standing mystery about why the Moon’s two sides are so different, using samples collected from its farside for the first time. Their findings suggest that uneven ...

A Planet 320 Light-Years Away Confirms What Scientists Long Suspected

Oct. 13, 2026 Astronomers have discovered that a scorching-hot planet 320 light-years away shares a striking chemical similarity with its host star, providing the first direct evidence for a fundamental assumption ...

NASA Spots a Giant Patch of Moon-Like Rock on Earth

Oct. 11, 2026 An astronaut aboard the International Space Station photographed a remarkable formation in Madagascar that looks surprisingly similar to the Moon’s bright highlands. Made of anorthosite, a rock ...

MIT Astronomers Catch a Star in a Feast That Could Last Billions of Years

Oct. 10, 2026 Astronomers have discovered a bizarre star system about 300 light-years from Earth where a small star is slowly devouring a nearby brown dwarf, an object too massive to be a planet but too small to ...

NASA Astronauts Splash Down After 100 Million Miles in Space

Oct. 8, 2026 NASA’s SpaceX Crew-12 astronauts have returned to Earth after 237 days in space, traveling more than 100 million miles and completing over 3,792 orbits while conducting research to prepare for ...

October’s Night Sky Is Full of Cosmic Tricks and Treats

Oct. 8, 2026 October’s skies are packed with celestial surprises, from Jupiter disappearing behind the Moon to two meteor showers lighting up the darkness. NASA highlights four must-see events, including ...

Hubble Space Telescope May Have Found a Planet Born After Its Star Died

Oct. 9, 2026 A strange chemical signature in old Hubble observations may point to a planet that formed after its star had already died. Astronomers found unusually high levels of niobium around the white dwarf HS ...

NASA’s Webb Finds Signs of Mars-Sized Worlds Smashing Together

Oct. 7, 2026 NASA’s James Webb Space Telescope is giving astronomers a glimpse of the kinds of violent collisions that may have shaped our own solar system, including the giant impact thought to have created ...

Don't Miss: Watch Saturn Shine and Halley’s Comet Debris Streak Across the Sky

Oct. 5, 2026 October skywatchers can see Saturn at opposition, catch meteors from Halley’s Comet during the Orionid peak, and watch the Moon sweep past the famous Pleiades star cluster. Moonlight may obscure ...

Watch Live: NASA’s Crew-13 Could Make the Fastest U.S. Trip to the ISS Ever

Sep. 30, 2026 NASA’s SpaceX Crew-13 mission is scheduled to launch four astronauts to the International Space Station on October 1. The Dragon could reach the orbiting laboratory in just 7 hours and 50 minutes, ...

The Ice Blasting from Saturn's Moon Enceladus Is Stranger Than Scientists Realized

Sep. 29, 2026 Enceladus may naturally separate and concentrate chemicals from its hidden ocean as droplets slowly freeze and shatter on their way into space. The process could explain Cassini’s puzzling ...

ESA’s Juice Just Used Earth as a Slingshot to Jupiter

Oct. 3, 2026 ESA’s Juice spacecraft raced past Earth on September 28, using our planet’s gravity to dramatically reshape its path toward Jupiter without burning much fuel. The flyby changed its direction by ...

Webb Finds a Surprising Atmosphere on a Scorching Lava World

Oct. 7, 2026 The James Webb Space Telescope has found strong evidence that the rocky lava world HD 3167 b has an atmosphere, despite circling its star every 24 hours under extreme heat. The surprising discovery ...

NASA's Perseverance Mars Rover Finds Groundwater, Lakes, and Hot Fluids in One Place

Sep. 30, 2026 NASA’s Perseverance rover has uncovered a surprisingly complicated history of water in Jezero Crater. Scientists expected the crater’s Margin Unit to contain lake sediments, but instead found ...

These Massive Stars Could Explain Webb’s Strangest Galaxies

Sep. 24, 2026 Hubble observations of massive stars in metal-poor dwarf galaxies are revealing clues to why the early universe looks so unusual. Researchers found that stellar winds weaken sharply at extremely low ...

The Solar System Chose Fire Over Ice from the Very Beginning

Sep. 22, 2026 Ancient iron meteorites reveal that some of the Solar System’s first solid bodies were built mostly from tiny heat-forged rock beads called chondrules, while water-rich dust was largely excluded. ...

Black Holes of Every Size Follow the Same Surprising Rule

Sep. 21, 2026 Scientists have found evidence that black holes of vastly different sizes may launch powerful jets according to the same universal rule. Supermassive black holes can produce jets soon after tearing ...

NASA’s Curiosity Rover Just Hit 5,000 Days on Mars and Sent Back This Stunning View

Sep. 30, 2026 NASA’s Curiosity rover marked 5,000 Martian days by capturing morning and afternoon views that were blended into a striking Mars “postcard.” The panorama shows Curiosity, its tracks, and the ...

NASA’s Moon Orbiter Finds a 728-Foot Crater That Wasn’t There Before

Sep. 18, 2026 NASA’s Lunar Reconnaissance Orbiter has revealed a 728-foot-wide crater that formed on the Moon in 2024, making it the largest newly formed crater ever identified in the solar system. The impact ...

Astronomers Just Found the Youngest Known Planet Ever

Sep. 17, 2026 Astronomers have confirmed a Jupiter-size planet less than a million years old, making Elias 2-24 b the youngest known planet and giving scientists a rare look at a world still being born. Its ...

Venus May Have Swallowed Its Own Moon

Sep. 16, 2026 Venus may have once had a moon, but new research suggests the planet’s incredibly slow rotation could have doomed it. Computer simulations showed that instead of gradually drifting away like ...

Two Astronauts Who Flew Farther Than Anyone Before Are Taking New NASA Roles

Sep. 26, 2026 Artemis II astronauts Victor Glover and Reid Wiseman are transitioning to emeritus status at NASA after their historic journey around the Moon earlier this year. The pair will continue advising and ...

James Webb Reveals Chariklo’s Mysterious Rings Are Changing Faster Than Expected

Sep. 15, 2026 The James Webb Space Telescope has revealed surprising changes in the rings around Chariklo, a small object orbiting between Saturn and Uranus. Over just a few years, its inner ring became more ...

The Moon May Have Formed Intact Just Hours After a Giant Collision

Sep. 9, 2026 Scientists have discovered that the Moon-forming collision may have depended heavily on how hot and physically strong early Earth and Theia were. New simulations found that some impacts create the ...