In this week's questions show, I talk about how we're in a new space race, and what this means for returning to the Moon. And what is our responsibility if we are truly alone in the Universe? Follow Dr Jessie Christiansen on Twitterhttps://twitter.com/aussiastronomer00:24 New space race05:27 How can I say that aliens don't exist? 07:07 Lack of evidence isn't evidence of non-existance11:00 How can we talk about life in the Universe? 19:04 arxiv.org papers aren't peer-reviewed21:19 If we're alone in the Universe, we shouldn't fight each other25:18 Is the expansion of the Universe stronger than the expansion force?