Galaxies that formed within the first few billion years after the Big Bang should have lived long, healthy lives. After...
Exoplanets – planets outside our Solar System – continue to provide astronomers with fascinating glimpses of other worlds, including the...
The universe was created about 13.8 billion years ago in a blaze of light: the big bang. Roughly 380,000 years...
CC BY-ND It seems like every week, another rocket is launched into space carrying rovers to Mars, tourists or, most...
Scientists thought asteroid Bennu’s surface would be like a sandy beach, abundant in fine sand and pebbles, which would have...
Curious Kids is a series for children of all ages. If you have a question you’d like an expert to...
As a celestial body, hanging on to your atmosphere isn’t always easy – just ask Mars – and a new...
Our Solar System, with just one star in the sky, may be a bit of an oddball. Most of the...
Comets and asteroids are both types of rocks that hang out in space, but their differences are pretty pronounced. Comets...
As our eyes on the sky grow ever more sensitive, we’re going to find more and more things we’ve never...
We thought we had it all figured out. When a star of a certain mass ceases nuclear fusion, dies and...
As their name suggests, ultradiffuse galaxies, or UDGs, are dwarf galaxies whose stars are spread out over a vast region,...
