The vast majority of space scientists believe alien life exists. Given the mind-boggling size of the universe, surely we are not alone. From alien microbes on a moon of Saturn to intelligent beings visiting us in their starships, how would the presence of extraterrestrial life forms affect you?

• How could we discover and communicate with a real ET?
• Would they be friendly or hostile?
• Can humans ever get to the stars?
• Could the first life on Earth possibly have been brought here from space?

Tune in for a fascinating discussion about ET.