Earth exists in a bubble. Our atmosphere forms a protective barrier between everything on the planet’s surface and the near-empty vastness of space. But it’s not the only bubble Earth sits inside. Bey

Might our universe – as vast as it is – be simply one of many? We look at the growing evidence that there’s more than one cosmos out there

GLOBAL EYE

Speak your mind

When comet 3I/ATLAS was discovered in July, on a one-way interstellar journey through our Solar System, Harvard astronomer Avi Loeb suggested it might be an alien spacecraft paying us a visit. Back in

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