Where Are The Aliens And When Can We Call Mars Home? | Q&A

Professor Brian Cox and Professor Martin van Kranendonk discuss the search for extraterrestrial life and establishing a permanent settlement on Mars.
MARS EXPLORATION
Stewart Dunn asked: An Australian team has made the semi-finals for the Mars Society competition to establish a colony on Mars with a bold plan to put one thousand colonists on Mars for six billion dollars. Given the reduced costs associated with space missions, the increase in space start-ups in Australia and the foundation of the Australian Space Agency, what role can Australia play in helping to explore and establish a permanent settlement on Mars?
ALIENS
Peggy Holmwood asked: Kirsten Banks, you are a science communicator and Astrophysicist and have spoken at schools across NSW and talked on radio shows about space and astronomy and have quite the passion for the subject. So, do you think all astrophysicists have an ultimate goal in finding an alien species to communicate and connect with?
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