This reason is enough to delay the Artemis II mission further, says a Mexican nuclear physicist to the Starlust team.

Add Yahoo as a preferred source to see more of our stories on Google. The sun has become more and more active over the last 16 years, in a turn that surprised scientists and could affect space weather ...

(PhysOrg.com) -- New photographs of the gas giant Jupiter, the first taken on May 9, show the massive reddish band of clouds known as the Southern Equatorial Belt in the planet’s southern hemisphere ...

This week, NASA’s Solar Dynamics Observatory observed a strong solar flare on February 4 — just weeks after severe solar flares triggered the largest geomagnetic storm we’ve seen in two decades. The ...

The sun has become increasingly active since 2008, a new NASA study shows. Solar activity is known to fluctuate in cycles of 11 years, but there are longer-term variations that can last decades. Case ...