Is travelling faster than the speed of light possible?

Isn’t it amazing that astronomy – humanity’s oldest science – continues to generate such a delightful amount of new knowledge? Seeing as we’ve been studying the motion of the stars for a good long whi

20 amazing answers t o curious

Time has occupied the greatest minds for centuries and we’re still none the wiser about its absolute nature. Although there’s nothing in physics that says time must flow in a certain direction, nor pr

Flicking through the pages of BBC Sky at Night Magazine each month, you’d be forgiven for thinking astronomers have black holes pinned down. Whether it’s the dramatic imaging of black hole shadows by

It’s one of the most basic concepts in physics, governing the behaviour of everything from subatomic particles to galaxies

‘The universe is a pretty big place. If it’s just us, it seems like an awful waste of space,’ wrote the American astronomer and author Carl Sagan in his book, Contact. Ever since humans first huddled