Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

The known universe is full of shockingly huge things. Here are the largest planets, stars, galaxies, and structures we've ...

Curiosity Point 1: A catastrophic event turned Venus into a hellish world?

Curiosity Point 1: A catastrophic event turned Venus into a hellish world?

Early risers are in for a spectacular show next week, when Jupiter, Venus and Mercury form a planetary lineup in the predawn sky on Sept. 1.

The September 2025 solar eclipse falls on Amavasya, September 21–22. Check date, time, visibility, and zodiac-wise ...

Last month, Google quietly killed off Google Sky Maps. But there’s still another way to virtually explore most of the solar system a la Google Maps: it’s called Google Maps in Space. Google Maps in ...

Late-stage planetary collisions reshaped Earth and its neighboring planets, delivering water, altering their atmospheres, and ...

Early Earth lacked life’s essentials until a collision with Theia added them. This chance event made life possible. After the Solar System formed, it took no more than three million years for the ...

Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, if more detailed analyses verify preliminary observations from the ...