New space rocket design revealed by Nasa

Last updated at 12:54

A rocket that could one day take people to Mars has been unveiled by the US space agency Nasa.

Experts say the Space Launch System will be the most powerful rocket since the one that put man on the moon over 40 years ago.

It's hoped the new launcher will be able to take humans up to the surface of asteroids, to Mars and maybe beyond.

Don't get too excited yet though - it won't be ready for take-off for another six years!