The newly found object, estimated to be roughly as massive as Jupiter, orbits a brown dwarf—a "failed star"—which in turn ...

Scientists are documenting a planetary system in the Milky Way galaxy that is so starkly dissimilar to our own solar system ...

That's far from what you'd call a good day, but it turns out the dinosaurs were particularly unlucky: A string of unfortunate ...

New Jersey's governor says about 6,600 people who indicated they were noncitizens were nonetheless registered to vote in the ...

The international team reached the conclusion after analysing nickel isotopes preserved in a thin layer of clay left behind ...

Kevin McCartney has overseen the Maine Solar System Model since its creation in 1999. He says the model stretches nearly 160 ...

This painting by Donald E. Davis depicts an asteroid slamming into tropical, shallow seas of the sulfur-rich Yucatan Peninsula in what is today southeast Mexico. Wikipedia Sixty-six million years ago, ...

Researchers identified the Chicxulub impactor as an exceptionally rare type of asteroid that wouldn't have triggered a mass ...

Rocky exoplanet atmosphere confirmed for the first time in a habitable zone: Harvard astronomers detected helium escaping ...

The researchers think that the planet has hosted its atmosphere for over 3 billion years, which makes it a compelling target ...

The asteroid that wiped out the dinosaurs was likely an exceptionally rare CO chondrite from a distant region of the solar system. Its unusual chemistry suggests that planet-cooling dust and debris, ...

Carbonaceous chondrites make up only 5% of meteorites so far sampled on Earth. CO chondrites make up a tiny fraction of that group. They are some of the most primitive and untouched materials in the ...