Humans could be sent to Mars 'one-way'

Humans could be sent to Mars one-way as part of Nasa plans to permanently colonise other planets.

Scientists have confirmed that they are looking into the possibility sending astronauts to other planets by 2030.

It would take the volunteers nine months to get to the red planet, and they would leave knowing they would never see Earth again.

That is because it would cost too much to fly them back.

The mission, titled Hundred Years Starship, is likely to cost something in the region of £7 billion, and it is relying on grants and donations. The world's billionaires have reportedly been asked to contribute.