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 ...

NASA has issued a warning that the Sun is “waking up,” with solar activity increasing steadily after decades of decline. The agency’s latest research, led by Jamie Jasinski at NASA’s Jet Propulsion ...

We all rely on the sun to supply our planet with light and warmth, but despite it being vital to our continued existence, there's a lot that scientists still don't know about it. A new study has ...