What's up August 25

NuSTAR continues to look at the Cassiopeia A supernova remnant through tonight.  Then, we slew to pick up a simultaneous observation with Chandra of an ultraluminous infrared galaxy, to help answer the question of whether a central black hole or star formation power these galaxies.  Then, back to a new position on Cas A.   We plan to post an image of the supernova remnant taken with NuSTAR soon.

uews© Caltech 2012