karenDr Karen Lee-Wadell tells us about her research with CSIRO on tidal dwarf galaxies.

Dr Ian ‘Astroblog’ Musgrave  tells us more about the Perseid Meteor Shower, the ‘Dance of the Planets’ and what’s up in the sky this week.

Dr Nadezhda tells us about the discovery or radio waves from Jupiter.
In the news: Help find black holes by joining a citizen science project at radio.galaxyzoo.org and we explain how the colours of auroras happen.