Why would astronomers place an X-ray observatory in space,like the Chandra observatory?
A)to map X-ray emissions from the moon
B)to map X-ray emissions from the sun
C)to record X-rays emitted from the big bang; the so called background radiation of the universe
D)to map deep X-ray emissions from deep space,particularly as a proxy for materials being sucked into black holes

Question

Quizplus · Accepted Answer

X-rays cannot penetrate Earth's atmosphere, so placing an X-ray observatory in space allows astronomers to map deep X-ray emissions from deep space, such as those emitted by black holes. Chandra observatory specifically studies the X-ray emissions from sources such as supernovas, neutron stars, and black holes.

Why Would Astronomers Place an X-Ray Observatory in Space,like the Chandra