31) Which of the following is the most common type of main-sequence star?

11) The main-sequence turnoff point of a star cluster tells us the cluster’s

4) Can black holes “evaporate” ?

10) The Einstein Cross and Einstein Ring are examples of:

1) Which of the following properties is absolute and independent of the frame of reference?

34) Which of the following discoveries, if they existed, would necessitate a reevaluation of our ideas of stellar formation?

Solange et Pierre-Antoine parlent du pique-nique de demain.

37) Typically almost no stars have been found with masses greater than 150 solar masses, because

47) How does the explosion of a nuclear bomb provide evidence of the theory of relativity?

7) According to General Relativity: