"Cosmic archaeologists" have discovered an iron-deficient second-generation star, which provides evidence of how ancient stars enriched their successors.

A century after Robert Goddard’s first-ever launch of a liquid-fueled rocket, two NASA experts weigh in on what his legacy ...

Located just 35 light-years away, this world is roughly 1.6 times the size of Earth. But don’t call it a twin. It’s a scorching, pungent orb wrapped in an atmosphere of hydrogen and sulfur, perched ...

A fridge-size space rock spectacularly broke apart over Ohio at 40,000 mph, creating a loud boom and a "fireball" that shone in the bright blue daytime sky. The rare sight, which exploded with the ...

Auroras may be visible from Alaska to Illinois tonight as several coronal mass ejections are forecast to impact within the ...

For decades, astronomers have struggled to differentiate giant planets from brown dwarfs, a class of objects more massive ...

"The most exciting point is we're getting back to it — we're getting back to contemplating what human exploration of the moon ...

Astronomers using MeerKAT have detected the most distant and powerful "cosmic laser" ever observed, offering new insights into galaxy mergers and the early Universe.

Kepler-51d is a giant, ultra-light “super-puff” planet wrapped in an unusually thick haze that’s blocking scientists from ...

When the Nobel Prize in Physics was announced in Stockholm in October 2013, the world was watching. Among the names read out ...