we now know that supermassive black holes are common in the cores of galaxies. for some galaxies, a…

we now know that supermassive black holes are common in the cores of galaxies. for some galaxies, a suspiciously high luminosity in a suspiciously small volume provides the needed smoking gun, but the actual luminosity depends heavily on whether stars and gas are available for the black hole to shear them apart. other galaxies may have one too, in spite of an unremarkable central luminosity. these black holes may have already eaten all the surrounding stars and gas, leaving no evidence behind. but stars near the center, in close orbit to the black hole (not too close to be consumed), will have\nidentify the two messages tyson conveys within this passage.\nour universe is filled with powerful but fascinating objects.\nstars near the center of a galaxy move at very high speeds.\ndespite the complexity of the universe, humans can understand how it works.\nsome galaxies have a black hole at their center that eats stars.\ndone

we now know that supermassive black holes are common in the cores of galaxies. for some galaxies, a suspiciously high luminosity in a suspiciously small volume provides the needed smoking gun, but the actual luminosity depends heavily on whether stars and gas are available for the black hole to shear them apart. other galaxies may have one too, in spite of an unremarkable central luminosity. these black holes may have already eaten all the surrounding stars and gas, leaving no evidence behind. but stars near the center, in close orbit to the black hole (not too close to be consumed), will have\nidentify the two messages tyson conveys within this passage.\nour universe is filled with powerful but fascinating objects.\nstars near the center of a galaxy move at very high speeds.\ndespite the complexity of the universe, humans can understand how it works.\nsome galaxies have a black hole at their center that eats stars.\ndone

Answer

Answer:

  • Our universe is filled with powerful but fascinating objects.
  • Some galaxies have a black hole at their center that eats stars.

Brief Explanations:

The passage starts by stating super - massive black holes are common in galaxy cores, which shows the presence of powerful and fascinating objects in the universe. It also describes how black holes in some galaxies can eat surrounding stars and gas, which is the second message.