Space & Future
One Giant Asteroid Impact May Have Reshaped Mars’ Tiny Moon Deimos
A single asteroid impact may have dramatically reshaped Deimos, the smaller of Mars' two moons, creating both a huge depression near its south pole...
Dying Galaxies Reveal What Happens After Black Hole Jets Switch Off
Astronomers have discovered a group of faint "dying" radio galaxies that could change our understanding of what happens after supermassive black holes stop producing...
Mars Dust Could Threaten Astronauts’ Lungs, NASA Warns
Future astronauts exploring Mars will face a danger that may be much harder to avoid than extreme cold or radiation: dust.
NASA has released a...
Hubble Discovers a Lost Galaxy Swallowed by the Milky Way 11.8 Billion Years Ago
The Milky Way has not always been the enormous spiral galaxy we see today. Like many large galaxies, it grew partly by swallowing smaller...
Scientists Solve Key Mysteries Behind Supernovae and X-Ray Bursts
Scientists have made two important nuclear measurements that could help explain what happens inside some of the most powerful explosions in the universe.
In two...
Galactic archaeologists find stars in the Milky Way came from another galaxy 12 billion...
Look up on a dark night and the Milky Way appears as a calm band of stars across the sky. But our galaxy has...
Astronomers Discover a Mysterious New Object Called a ‘Black Hole Star’
Astronomers may have discovered an entirely new kind of object in the early universe: something that looks like an enormous star but is powered...
Giant Planets May Be Born in the Shadow of Supermassive Black Holes
Black holes are often imagined as cosmic vacuum cleaners that simply swallow everything nearby.
But new research suggests the environment around supermassive black holes may...
Why Astronauts Get Constipated in Space: Their Blood Offers a Clue
Constipation is a surprisingly common problem for astronauts living in space.
Scientists have long known that digestion can change when people leave Earth, but exactly...
A Dry Martian Meteorite Reveals Where Water Once Hid on Mars
Mars may look like a dry, dusty world today, but billions of years ago, water interacted with its rocky surface.
Now, scientists have found new...
Chemical Fingerprints Reveal the Secret Pasts of Massive Stars
A massive star may look like it has spent its entire life alone, but its chemical makeup can tell a very different story.
Scientists have...
Astronomers Discover a Stellar Stream Beyond the Milky Way for the First Time
Astronomers have discovered a faint stream of stars in another galaxy for the first time, opening a new way to investigate one of the...
Deep Space
Scientists discover first Earth-sized planet
In a new study, researchers have discovered the first Earth-sized planet.
The discovery was by NASA's Transiting Exoplanets Survey Satellite (TESS).
TESS discovered a nearby system...
ESA’s Gaia telescope unveils the Milky Way’s oldest star streams
The Gaia space telescope, managed by the European Space Agency (ESA), has made a remarkable discovery about our galaxy, the Milky Way.
Researchers have identified...
Spending time in space can harm the human body − but scientists are working...
When 17 people were in orbit around the Earth all at the same time on May 30, 2023, it set a record.
With NASA and...
Astronomers Witness a Giant Star’s Final Moments from The Very First Flash of Its...
Astronomers have captured one of the rarest events in the universe—the very first moments of a massive star exploding.
The discovery has given scientists an...
Scientists reveal how the very faint dwarf galaxies are born
As their name suggests, ultradiffuse galaxies, or UDGs, are dwarf galaxies whose stars are spread out over a vast region, resulting in extremely low...