MARK GARLICK / SCIENCE PHOTO LIBRARY MARK GARLICK / SCIENCE PHOTO LIBRARY
Artwork of a pulsar. Pulsars are very rapidly spinning neutron stars the dead cores of massive stars rotating on their axes often hundreds of times every second. Radio and optical beams of radiation, emitted from the pulsar's magnetic poles, flash across our line of sight and the star appears to blink on and off as it spins.
Model release not required. Property release not required.