Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

Just a week after a successful launch of its heavy-lift New Glenn rocket, Blue Origin says it will make New Glenn even heavier.

It wasn’t easy, bringing the stars indoors. The first show, held in Germany in 1925, used grainy footage on a small dome, but was dizzying nonetheless. Now, a whole new future looms.

Far from the Sun, beneath the frozen shells of moons like Europa and Enceladus, new research suggests that water may not ...

Scientists finally weigh in on what it means to create life outside of Earth and what it would take to grow plants on other ...

That’s also true for the other moons that provide the gravitational stress. As a result, the internal oceans may actually ...

The planetarium turns 100 this year. What came before the giant domes, with imagery of galaxies, asteroids and meteors ...

Gemini 3's new smart features make your studies, office work, and everyday tasks easier and faster than ever before. Learn ...

Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with ...