If There Is a 2 Million M _$\odot$ Black Hole at the Center of Our Galaxy

Q71: How do astronomers know that AGNs are

Q85: If you measure the velocity of a

Q86: What is the most likely candidate for

Q87: We classify galaxies by:<br>A) their true shapes<br>B)

Q88: How did astronomers determine that elliptical galaxies

Q89: What is the approximate percentage of nearby

Q90: If the rotational speed of the

Q92: We know AGN are about the size

Q93: What do the formation of the Solar

Q95: You observe a quasar that varies in