Any main-sequence star over 25 solar masses will probably retain ...

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Any main-sequence star over 25 solar masses will probably retain enough matter in its core after its supernova to make a black hole.
 
  Indicate whether the statement is true or false

Question 2

What is the best evidence for a supermassive black hole in the center of the Milky Way Galaxy?
 
  A) amazing filaments of radio emission swirling around the center of the galaxy
  B) the motions of stars around a mysterious dark object
  C) The existence of the Milky Way itself: The mass of the black hole is essential to gravitationally bind the galaxy together, so it doesn't fly apart.
  D) the gigantic bursts of X-ray energy from a mysterious dark object

[bfulkerson77]

Answer to Question 1

TRUE

Answer to Question 2

B

[abc]

TY

[bfulkerson77]

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