What is a quasar?

20 amazing answers t o curious

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

In a remote mountain range in Chile, a newly unveiled observatory will soon begin mapping the sky. When its survey starts, the Vera C Rubin Observatory will spend every night for the next decade chart

I think one of the most interesting things happening in astrophysics at the minute is the rapid development of new ways to study black holes. Whether it’s the virtuoso display of the Event Horizon Tel

Our eyes paint such vivid portraits of the world around us that it’s easy to forget how much of our surroundings go unseen. Wi-Fi signals pinging this way and that, subatomic particles and radiation z

Of the hundreds of thousands of asteroids in our solar system, it is all too feasible that one could strike Earth. If scientists discover this is likely to happen, what are our options for defending ourselves – and who will make the key decisions? Tomas Weber reports