black hole

A black hole is a region of space where matter has collapsed in on itself. At its centre, matter is squeezed into a tiny , incredible dense point. The gravity of the black hole is so strong that nothing can escape- not even light. Supermassive black holes lie at the centre of most galaxies, including our own. They may be created when the galaxies are forming, and they can be more massive than a billion suns. Stellar black holes form from the collapsed remains of exploded supergiant stars. They may be very common in all galaxies.

Kieran Agius

6.1 Red