Space & Future
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...
Astronomers Find Three Giant Black Holes in One Ancient Galaxy for the First Time
Astronomers have discovered three actively feeding supermassive black holes inside a single distant galaxy, something never before seen so far back in the history...
Astronomers Catch a Dying Star Recycling Its Material Back into Space
Astronomers have captured a remarkable view of a dying star's remains being broken apart and mixed into the space between stars.
The discovery offers a...
A Blazar 1.5 Billion Light-Years Away Is Challenging What Astronomers Thought They Knew
About 1.5 billion light-years from Earth, a galaxy called PKS 2155-304 is giving astronomers more questions than answers.
After studying nearly two decades of observations,...
Astronomers Release the Largest 2D Map of the Universe Ever Made
Astronomers have released the largest two-dimensional color map of the universe ever created, containing an extraordinary 5.6 trillion pixels and nearly 4 billion stars,...
Rare Mars Meteorite Fills a 2-Billion-Year Gap in the Red Planet’s History
A rare meteorite from Mars is giving scientists a new look at a mysterious period in the Red Planet’s history.
Researchers at Boston College have...
Deep Space
Why NASA’s Roman Mission will study Milky Way’s flickering lights
NASA’s Nancy Grace Roman Space Telescope will provide one of the deepest-ever views into the heart of our Milky Way galaxy.
The mission will monitor...
New study suggests planets could form more easily than we thought
Have you ever wondered how planets like Earth came into being?
It all starts in the cosmic nurseries of space, where young stars are surrounded...
Metal-rich stars not necessarily make metal-rich planets, shows new study
Unraveling this surprising discrepancy could reveal new details about the planet formation process.
A surprising analysis of the composition of gas giant exoplanets and their...
How old is the universe? The oldest stars in the Milky Way may hold...
How old is the universe?
Scientists have long tried to answer this question, but different measurement methods have produced conflicting results.
Now, researchers from the University...
Martian rock-metal could help 3D print on Mars
A little Martian dust appears to go a long way.
A small amount of simulated crushed Martian rock mixed with a titanium alloy made a...