Debuts can sink an act before they get started, or give them a mountain to climb to get over with a brand-new audience.

Jiri Prochazka got the crucial rebound performance he needed Saturday at UFC 311 against fellow former champion Jamahal Hill.

Look up! Dr Maggie Aderin-Pocock and Professor Chris Lintott present the iconic, inspirational look at cutting-edge space science and the incredible universe all around us.