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

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, ...

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

Here’s what you should know when you go outside to see for yourself: Yes, the planets are indeed lined up across our sky. No, ...

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 ...

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.

A planet that may support alien life has been discovered less than 20 light-years away from Earth - and it's believed to ...

Researchers from the University of Oxford have found an exoplanet – a planet outside our own solar system – more than six ...