Viruses from Mars, Asteroid Landing, Stars Colliding | Q&A 219

What are the risks of returning samples from Mars? What happens if you bring two stars together? Which galaxies can be seen with the naked eye? What is the system behind naming stars and exoplanets? All this and more in this week's Q&A!

Watch the interview here (with no ads) or on YouTube: https://youtu.be/TAx9s_idIpI

Here's the full, unedited livestream: https://youtube.com/live/qixDIcSypTk

Viruses from Mars, Asteroid Landing, Stars Colliding | Q&A 219 (Vimeo)