Solar System

Levels of potentially dangerous cosmic radiation in Earth's atmosphere rose to a two-decade high in November after a rare solar super-flare pummeled the planet with high-speed particles from the sun.

We don't often get a good look at X-class solar flares from ground-based observatories.

Europe's plans to develop its "Argonaut" robotic moon lander are moving ahead with the announcement of an Italy-led consortium that will build a key element of the spacecraft.

Asteroid Bennu samples contain life-friendly sugars, a strange "space-gum," and ancient stardust

Measuring the time discrepancy between Earth and Mars will help make future navigation and communication systems on the Red Planet more accurate.

Would you like to live in a house on Mars made with Earth bacteria and Martian rocks?

This year marks 30 years of SOHO observing our sun, an extraordinary milestone for a mission originally expected to last only about three years.

The Australian company HEO Robotics wants to join efforts to study a rare space event, conducting its own flyby of the asteroid Apophis when it makes its close approach to Earth in 2029.

"These images are not just pretty."