Have What it Takes to Go to Mars? NASA Is Now Recruiting New Astronauts Applicants will need to be US citizens with master's degrees in a STEM field or have completed pilot school.

What is Earth-Mars transfer window? The Earth-Mars transfer window is a critical concept in space exploration that determines the optimal time to launch spacecraft from Earth to Mars.

Proponents of going to Mars see peril and opportunity in Elon Musk's close relationship with Trump. Experts say just getting Americans back to the moon in the near future will be challenging enough.

NASA's yearlong simulated Mars mission at the Johnson Space Center in Houston, Texas is helping pave the way for an astronaut-crewed Mars mission in the coming decades.

Proponents of going to Mars see peril and opportunity in Elon Musk's close relationship with Trump. Experts say just getting Americans back to the moon in the near future will be challenging enough.