A glowing hand stretches across the cosmos, with its palm and fingers sculpted from the wreckage of a massive stellar explosion.
The eerie structure is part of the nebula MSH 15-52, powered by pulsar B1509-58 — a rapidly spinning neutron star that is only about 12 miles (20 kilometers) in diameter. By combining radio data from the Australia Telescope Compact Array (ATCA) with X-rays from…