Each image is actually a mosaic of 25 high-resolution shots ... The four images offer a high-definition tour of the sun. First, the visible light image below depicts the star’s constantly ...

"Every piece of this process has been revealing itself like an onion. It peels off, and another thing arrives," said the lead ...

PhotoPhoto of the Sun in hydrogen-alpha light. The giant planet Jupiter, whose large moons Galileo discovered with his "trouble-making" telescope, is more than 5 times farther from the Sun than ...

Now, thanks to NASA’s NuSTAR telescope, we’ve been given a look at hidden light shows on the Sun. It shouldn’t be surprising that our star puts off more light than we are able to see with ...