SpaceX finishes testing Falcon Heavy's first stage cores
One step closer to carrying larger payloads into space.
Watch record-setting astronaut Peggy Whitson's return to Earth
There's hours of live coverage starting at 2:15PM Eastern.
Trump's pick for NASA's new leader sparks mixed reactions
He backs private spaceflight, but some object to his political background.
Researchers want astronauts to put their biological waste to work
They’re using urine and exhaled air to fuel yeasts that can generate useful byproducts.
SpaceX aims to reuse rockets within 24 hours by 2018
It’s one of the company’s short-term reusability goals.
Virgin Galactic to conduct first powered spaceship tests in 3 years
It should reach space as soon as November.
China's heavy-duty rocket fails in mid-flight
The country's space program may have encountered a serious setback.
The first commercial astronaut training center will be built in the UK
Blue Abyss will cost £120 million and open in 2019.
Mars astronauts at greater risk of cancer than previously thought
Cosmic rays are much more of a threat than expected.