The team explore one of the biggest stories in space news, the ‘city killer’ asteroid 2024 YR4. How well did the planet respond to this potential natural disaster?

The Sky at Night team explore what the latest research is revealing about Mars. Could life once have thrived there? And will a return trip to our neighbouring planet ever be possible?

To celebrate the 350th anniversary of the Royal Observatory, The Sky at Night is recreating history. In the times of the early Astronomers Royal, scientists would gather at spectacular dinner parties at Flamsteed House in Greenwich to share ideas and discuss the universe. In 2025, 350 years on from the first ground stones being laid, we come together once again to discover how the work at the Royal Observatory defined the prime meridian, fundamentally changing our world and blasting technology and communications forward into the global economy we know today.