The European Union Agency for the Space Programme (EUSPA) has announced the signing of a new contract to launch second-generation Galileo satellites with Europe's Ariane 6 rocket launcher.

On Jan. 7, 1610, Galileo Galilei turned his self-built telescope, which he had recently made improvements to, towards Jupiter. There he noticed three spots of light. Though he first concluded they ...

Scientists are proposing a new source of fuel for potential alien life on Europa: Radioactive elements seeping out of rocks and into the moon’s ocean, where it could generate enough energy to support ...

Add Yahoo as a preferred source to see more of our stories on Google. On Dec. 28, 2000, NASA’s Galileo spacecraft discovered auroras on Ganymede, Jupiter’s largest moon. Galileo launched in 1989 on a ...

On Dec. 28, 2000, NASA’s Galileo spacecraft discovered auroras on Ganymede, Jupiter’s largest moon. Galileo launched in 1989 on a mission to study Jupiter and its moons. It also flew by Venus and ...

Last week, NASA revealed that it had lost the signal from its MAVEN (Mars Atmosphere and Volatile EvolutioN) spacecraft, one of just seven Earthly probes currently orbiting Mars. The agency failed to ...

An Ariane 6 launches two Galileo navigation satellites Dec. 17. Credit: ESA-CNES-Arianespace-ArianeGroup/Optique vidéo du CSG - S. Martin WASHINGTON — An Ariane 6 rocket placed two satellites for ...

Liftoff occurred at 12:01 a.m. EST on Wednesday (Dec. 17). When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Europe's towering Ariane 6 rocket is ...

This could be the end of the orbiter that studies the Red Planet’s atmosphere and relays communications between NASA and its Mars rovers. Reading time 2 minutes Last week, NASA revealed that it lost ...

Images from NASA's Galileo mission reveal a tantalizing starburst-like feature. Scientists call it a "wall demon." When you purchase through links on our site, we may earn an affiliate commission.