Origin of earth’s ‘second moon’ discovered

Astronomers are now regularly detecting planets thousands of light years from Earth – but have we missed one in our own Solar System?

While our planet only has one easily visible Moon, several other tiny objects arguably deserve the title too

The comet dubbed 3I/ATLAS, a rare extrasolar intruder, continues to barrel through the Solar System, attracting interest and speculation from astronomers and space scientists worldwide. Harvard astron

One of the best ways to study the Universe is to inspect actual materials from our celestial neighbours. Some naturally fall to Earth as meteorites, but these are few and far between, limited in their

An artist’s impression of Cha 1107-7626 accreting material ...

How many planets are there in the Solar System? It sounds like an easy question, but it’s more complex than you might think – and actually it’s one we still can’t answer. With scientists finding evide