Nasa has been discussing a mission to Mars ever since astronauts landed on the moon, and for many it might seem like a pipedream.
But Nasa administrator and former astronaut Charles Bolden has now said engineers are 'a lot closer than ever before' in making this dream a reality.
He recently told Congress that nuclear thermal propulsion is 'the most effective' way of sending humans to Mars and believes reaching the red planet by 2030 will ensure the survival of our species.
Ensuring the survival of our species? To read more, click here.