First glimpses of interstellar comet suggest it’s not so different

Comet C/2019 Q4 gained a lot of attention when astronomers identified it as the second interstellar object ever discovered

Life may be common in the Milky Way, thanks to comet swapping

And Earth may be one of the primary donor worlds

This frozen traveller shows the earliest signs of activity

These primordial bodies contain material largely unchanged from the birth of the Solar System some 4.6 billion years ago

Two space telescopes have provided the most compelling confirmation yet for a collision between two black holes

We find out how vast our solar neighbourhood really is

It holds dwarf planets and it’s poisonous – that’s just two facts about this comet-laden object

Neil DeGrasse Tyson poses one of life’s biggest questions in this Sunday’s episode of Cosmos: A Spacetime Odyssey

What is the is region of space at the edge of the Solar System?