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Astronaut Chris Hadfield in 2014.

Astronaut Chris Hadfield says we could have gone to Mars decades ago — here’s why we haven’t

Chris Hadfield, a former astronaut, says the rocket and spaceship technology could have been created decades ago to send people to and from Mars — but at extraordinary risk of death. He thinks we need some possibly "outlandish" solutions to make travel to the red planet safe and practical.
Former astronaut Chris Hadfield in 2014.

Astronaut Chris Hadfield says the rockets from NASA, SpaceX, and Blue Origin won’t take people to Mars

Chris Hadfield, a former astronaut, says the future rockets and spaceships of NASA, SpaceX, and Blue Origin would be too risky to get people to and from Mars. He thinks we need some possibly "outlandish" solutions for space travel to make round-trip travel to the red planet practical.