Mars trips may involve less radiation exposure than previously thought
Astronauts might 'just' face 60 percent of their career radiation dose.
Watch the ESA launch its wind-mapping Aeolus satellite at 5PM ET
The data it collects will improve weather forecasting.
Scientists may have found liquid water on Mars
There could be a buried lake underneath the Martian polar ice cap.
The largest-ever solid rocket engine is ready for its first static fire
It's the P120c, and it will be used by the ESA on the Vega and Ariane 6.
Airbus is designing a Mars rover to return soil samples
The company's UK-based team that's already building ESA's ExoMars will work on the project.
Turns out the interstellar object ‘Oumuamua is a comet after all
It was thought to be an asteroid after it was first observed.
A Stephen Hawking musical tribute was beamed directly at a black hole
A memorial service for the astrophysicist took place today.
The drama and fury of Kilauea's volcano from space
ESA releases the most detailed star map yet
Gaia's new data has provided info for a whopping 1.7 billion stars.