Reblogged from mothernaturenetwork
Frank's Place
My blog is just a lot of things I've come across that I like. Check it out, I hope you find it entertaining.



NASA telescope begins hunt for black holes
Launched in June, the NuSTAR observatory has observed various bright X-ray sources across the sky to make sure its instruments are in top shape.
NASA telescope begins hunt for black holes Launched in June, the NuSTAR observatory has observed various bright X-ray...