Planets

Researchers studying planet K2-18b's atmosphere have detected signs of molecules which on Earth are only produced by simple organisms.

Could discoveries of alien life ever change the human psyche in how we view ourselves and each other?

Three astronomers tell the BBC what planets are on display in the sky above the UK this week.

This week seven planets will be briefly visible in the evening sky as part of a rare phenomenon.

The best chance to see as many as possible will be after sunset on Wednesday and Thursday.

A rare celestial phenomenon is currently lighting up the night sky.