Mini moon: Nasa spacecraft discovers asteroid orbited by its own tiny satellite

Dinkinesh - Amharic for you are marvelous' - lies beyond orbit of Mars and has its own dinky sidekick barely 220 metres across

You could call it a mini moon".

In one of the smallest, but still exciting, discoveries by Nasa in recent years, a spacecraft visiting a minor asteroid way out in the solar system has discovered that the chunk of space rock has its own tiny sidekick.