Starguide: July 2021

Jupiter's four largest Galilean moons and the famous Perseid meteor shower.

08 July 2021

6 minutes

This clip is from

The Sky at Night—ET and the BBC

The Nancy Grace Roman Telescope
Duration: 00:38
Catching 'Ghost Particles'
Duration: 00:44
The Coldest Place in the Universe
Duration: 00:56
Star Loungers
Duration: 00:58