The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve.

Explore how space solar power and satellite energy could beam clean, continuous electricity from orbit to Earth, examining ...

It comes down to the speed at which these objects were moving during their formation, and the strength with which their constituent particles interlocked. When you purchase through links on our site, ...

Add Yahoo as a preferred source to see more of our stories on Google. Space-based solar power could cut Europe’s need for land-based renewables by up to 80%. (CREDIT: Science Photo Library / Getty ...

Max Planck Institute for Extraterrestrial Physics scientists have been able to disentangle the X-ray glow originating in our ...

A comet born around another star is carrying methane, and the chemical details of that methane are unlike anything ...

A new NASA spacecraft has started tracking the particle streams that can make a massive solar flare dangerous while mapping ...

On April 17, engineers at Nasa Jet Propulsion Laboratory made a difficult but necessary decision: they shut down one of Voyager 1's long-running science instruments.

Easy: Venus is the weirdest planet in the solar system. The most distant major planet from the sun and the last stop before ...

We take a look at the best (and worst) places to ski in the solar system, logistics aside. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Portal Space Systems has raised $50 million in funding to speed up development of the Seattle-area startup's highly ...