Chandra X-ray Observatory

Spiral galaxy NGC 3627. Image Credit: X-ray: NASA/CXC/SAO; Optical: NASA/ESO/STScI, ESO/WFI; Infrared: NASA/ESA/CSA/STScI/JWST; Image Processing:/NASA/CXC/SAO/J….

The Cassiopeia A supernova remnant has been observed for more than 2 million seconds since…

  In the Cygnus OB2 star cluster, giant stars send out large amounts of high-energy…