The $85 million helicopter demo was considered high risk, yet high reward: 'Each world gets only one first flight.'

A historic flight involving a helicopter on Mars has been postponed until at least April 14, NASA announced.

A cancer diagnosis at age 10 almost deprived Hayley Arceneaux of her astronaut dreams, but a private space mission rescued her ambitions.

'I do believe life is out there, but I'm still waiting for evidence to prove it.' - Patrick Wiggins, NASA ambassador

NASA’s experimental Martian helicopter holds a small swatch of fabric from the Wright brothers' first airplane.

China is also developing capabilities for deep space human spaceflight and a three-core launcher for potential lunar missions.

SpaceX showed the potential of its latest rocket, but the end result was another fireball.

The incident called to mind his 2006 comment that 'you cannot go to a 7-Eleven or a Dunkin' Donuts unless you have a slight Indian accent.'

NASA's Mars rover has sent back pictures that show the planet in unprecedented detail. 'It was incredible.'

NASA's Perseverance rover successfully landed on the surface of Mars to begin searching for signs of past life.