Universe Today
How Much Are Asteroids Really Worth?
Euclid Could Find 170,000 Strong Gravitational Lenses
Uranus's Wobbling Moons Could Point to Oceans Under the Ice
Stem Cells Grown in Space Could Revolutionize Medicine Here on Earth
Magnetic Tornado is Stirring up the Haze at Jupiter's Poles
Is There Seismic Activity on Venus? Here's How We Could Find Out
The Holiday Fireplace Video We Needed
An AI Chemist Made A Catalyst to Make Oxygen On Mars Using Local Materials
Asteroid Samples Returned to Earth Were Immediately Colonized by Bacteria
There is no place you can go on Earth that hasn't been colonized by bacteria, from the bottom of the oceans to the cloud tops. And when Japanese researchers examined samples of Asteroid Ryugu from the Hayabusa2 mission, they realized the little devils had found a new home. Despite containment protocols, with the samples delivered in a hermetically sealed chamber, opened in airtight containers in nitrogen gas, in a negative pressure room, life found a way.
Continue reading
An Insanely High-Resolution Image of the Sun
Scientists Reveal a New Way to Study Near-Earth Asteroids
The Hubble and FU Orionis: a New Look at an Old Mystery
China Tests a Reusable Inflatable Module in Space
OKEANOS - A Mission That Would Have Retrurned Samples From the Trojan Asteroids
Fantastic New Image of the Sombrero Galaxy From Webb
You're looking at a fantastic new image of the Sombrero Galaxy captured by JWST. If you look carefully, you can see the clumpy, cloud-like outer ring made of gas and dust. At the center is an actively feeding supermassive black hole. Thousands of globular star clusters surround the galaxy. In Webb's infrared view, the thick outer ring seen by Hubble disappears, revealing the complex structure underneath that produces surprisingly few stars.
Continue reading
We're Living in an Abnormal Galaxy
Testing the Robots that Might Explore Europa
Einstein Predicted How Gravity Should Work at the Largest Scales. And He Was Right
Researchers working with the Dark Energy Spectroscopic Instrument have mapped nearly 6 million galaxies across 11 billion years of the Universe's history. In a new study, they explain that gravity at the largest scales behaves exactly as Einstein predicted it would with the general theory of relativity. These observations also limit the possible theories of modified gravity, which have been proposed to explain dark matter observations.
Continue reading
Watch the Crescent Moon Occult Spica for North America Early Wednesday Morning
NASA Releases its Moon Phases Animation for 2025
NASA, SpaceX Illustrate Key Moments of Artemis Lunar Lander Mission
The Last Arecibo Message Celebrates the Observatory and One of its Greatest Accomplishments
A Nearby Supernova Could Finally Reveal Dark Matter
Astronomers Find a 3 Million Year Old Planet
There was Hot Water on Mars 4.45 Billion Years Ago
Mars formed 4.5 billion years ago, roughly the same time as the Earth. We know that water was stable on Earth since about 4.3 billion years ago, but when was it present on Mars? Researchers investigated a meteorite that originated from Mars and found zircon crystals that date back to 4.45 billion years ago. They believe this could be the oldest evidence for water on Mars. And not just water, but hot water welling up from hydrothermal systems beneath the surface.
Continue reading
Axion Dark Matter May Make Spacetime Ring
Earth's Old Trees Keep A Record of Powerful Solar Storms
New Supercomputer Simulation Explains How Mars Got Its Moons
One mystery in planetary science is a satisfying origin story for Mars's moons, Phobos and Deimos. Were they chunks of Mars blasted into space by a meteor impact? Were they captured asteroids from the belt? A new supercomputer simulation found that a reasonable explanation could come from a massive asteroid passing just close enough to Mars that it was torn into pieces. Over time, chunks and debris would have settled into a disk around Mars and clumped into moons.
Continue reading
The Early Universe May Have Had Giant Batteries of Dust
The First Close-Up Picture of Star Outside the Milky Way
Here's What We Know About Earth's Temporary Mini-Moon
New Study Suggests Black Holes Get their "Hair" from their Mothers
Gaze at New Pictures of the Sun from Solar Orbiter
Here's How to Weigh Gigantic Filaments of Dark Matter
How Could Astronauts Call for Help from the Moon?
There Was a 15 Minute Warning Before Tonga Volcano Exploded
Main Sequence and White Dwarf Binaries are Hiding in Plain Sight
What a Misplaced Meteorite Told Us About Mars
Uranus is Getting Colder and Now We Know Why
How Scientists Repurposed a Camera on ESA's Mars Express Mission
SpIRIT CubeSat Demonstrates a Operational Gamma and X-Ray Detector
Sun-Like Stars Around Black Holes: What Gives?
Starship's Booster (and Donald Trump) Make a Splash With Sixth Flight Test
The Strange Pulsar at the Center of the Crab Nebula
The Biggest Black Holes May Start From The Tiniest Seeds
China's Proposed Cargo Shuttle, the Haolong, Has Entered Development
Up to a Third of Stars Ate Some of their Planets
The Large Magellanic Cloud Survived its Closest Approach to the Milky Way
The Large Magellanic Cloud is the closest, brightest dwarf galaxy to the Milky Way—20 times bigger than the full Moon in the sky. Astronomers think that the LMC just completed its closest approach to the Milky Way, blowing away the spherical halo of gas surrounding it. Smaller galaxies would have shut down star formation, but the LMC has enough material to keep forming stars. New observations from Hubble have helped astronomers measure its halo structure.
Continue reading
The New Mars Landing Approach: How We'll Land Large Payloads on the Red Planet
Three More "Galactic Monster" Ultra-Massive Galaxies Found
