It is a question that continues to haunt humankind: Is there life beyond Earth?
For decades there has been space exploration with trips to the Moon and planet exploration.
But what about putting people on Mars?
That's what SpaceX founder Elon Musk wants to do and he says it could be done as early as 2024.
Musk's proposal is six years ahead of NASA's plans. So, will we be able to travel to the red planet?
Presenter: Hazem Sika
Philippe Blondel - Senior Lecturer, Department of Physics, University of Bath and Deputy Director, Centre for Space, Atmospheric and Oceanic Science.
Eric Berger - Senior Space Editor, Ars Technica and a former Science Reporter for the Houston Chronicle.
Source: Al Jazeera