Are we a step closer to getting humans on Mars?

An American space capsule that could help get humans to Mars is making its first test flight on Thursday.

The Orion capsule will be launched into space on a powerful Delta rocket from Cape Canaveral in Florida.

Professor of Astrophysics, Tim O'Brien, talks to Ricky about whether we are a step closer to getting humans on Mars.

More on this story - 'Mars ship' set for test flight.