The telescope was built to spot black holes and other distant and dark stellar objects. This is the first time the spacecraft has trained its eyes on our own sun. It’s a kind of out-there idea hatched in the early days of the mission, when scientists realized NuStar’s powerful instruments might be able to see new details in our star. Because NuStar senses x-rays, they could turn it toward the sun without hurting the instruments.
NuStar already has given insights into temperature fluctuations above sunspots. It may also be able to capture theorized nanoflares in action...Read More