It’s been a fun year seeing what the scientific community has been doing with NuSTAR. This is from a science group that triggered a Target of Opportunity (ToO), which is basically what happens when something cool goes bump in the night that we either didn’t expect or couldn’t predict and someone comes to us and says “Hey, we should look at this, it’s really interesting!”
Beautiful new shot of Arp299. Red/Blue are the NuSTAR false color hard X-ray images overlaid on an HST optical image.
Image credit: NASA/JPL-Caltech/GSFC
Associated news release here, where you can also get a link to larger versions of the image. Because you know you want this to rotate through as your desktop background.