Examlex
What name is given to a galaxy with a smooth distribution of brightness and a very elongated shape?
Q40: A spherical cluster of several hundred galaxies
Q103: The 21-cm line is one of the
Q126: The presence of a supermassive black hole
Q137: What is a primordial black hole?<br>A) black
Q154: The Hubble relation links which two characteristics
Q171: Astronomers can determine the amount of mass
Q178: Low-mass stars can ascend the H-R diagram
Q180: Which of these characteristics does the Local
Q196: Suppose astronomers were able to detect radio
Q199: How does the number of barred spiral