Saturn stunned skywatchers on 23 November when its iconic rings seemed to vanish, leaving the planet looking strangely bare.

The idea of artificially lowering the planet’s temperature is gaining supporters and hitting political opposition.

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

The night sky will show a rare alignment of planets in the night sky, with Venus and Mercury visible the morning of Tuesday, Nov. 25.

What happens when a planet contains immense quantities of water but is far too hot for that water to remain liquid?

Mysterious interstellar object 3I/ATLAS could be passing by Jupiter to "seed" the planet with "technological devices." ...

If we find technological satellites of Jupiter that we did not send, it would imply that Jupiter is of interest to an ...

Scientists clarified that, if considering the comet’s trajectory relative to the Sun, it is already on its way out of the solar system while still approaching our planet ...

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

A nearby binary star system is bereft of giant planets, but scientists think it may still be a decent place to look for life. Binary star system Eta Cassiopeiae, located just 19 light-years away, ...

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

A massive solar storm in May 2024 gave scientists an unprecedented look at how Earth’s protective plasma layer collapses ...