Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

There's a new race in space, but it's not where you might think. It's happening close to home – in the nearest bit of space, ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Spotting one or two of the planets in our solar system is well worth a good skywatch, but seeing (almost) all of them in a ...

First discovered in 2009, GJ 1214 b is described by the JWST team as being “sub-Neptune-sized” - smaller than the outermost ...

NASA shares an iconic image of carbon dioxide ice erupting in geysers when Martian winter turns to spring.

NASA and European scientists explain how they calculate the probability of the space rock 2024 YR4 impacting our planet, and why it’s not yet time to worry.

Astronomers have discovered a large Earth-like planet orbiting a distant star that could be home to alien life. The exoplanet ...

The great planetary parade in February 2025 will see five bright planets in clear view and a special alignment of Mercury and ...