The International Space Station is marking 25 years of nonstop human presence in orbit. Nearly 300 people have lived aboard ...

Scientists found two Earth-sized planets and a third candidate orbiting a nearby double star system, TOI-2267.

When evaluating possible planets out of the thousands out there, explained Prof. Bean, scientists look for liquid water as a ...

Harvesting solar energy in orbit and beaming it down to Earth is a decades-old idea. Now, a raft of companies say they could ...

New ESA simulations suggest that a solar storm on par with the 1859 Carrington Event could wreak havoc on Earth-orbiting ...

This statement might sound like a line from a sci-fi movie, but what if life on Earth didn’t start here at all? For decades, ...

Huge eruptions from the Milky Way’s supermassive black hole in the distant past may have sterilized much of the inner galaxy ...

A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

The risk of a cosmic body striking Earth—or exploding in the sky—may be higher in 2032 and 2036, researchers have cautioned.

From the balcony of his family’s downtown London, Ontario apartment, five-year-old Siddharth Patel would spend nights gazing ...

Saturn, the planet of karma, is transiting into Pisces, offering cosmic guidance to all zodiac signs. This transit emphasizes ...

I/ATLAS has unexpectedly become bluer than the Sun, hinting that it could be emitting light, not just reflecting it — a sign ...