Why do blue stragglers show up in globular clusters? What will ...

[cool]

Why do blue stragglers show up in globular clusters?
 
  What will be an ideal response?

Question 2

The rare Earth hypothesis holds that Earth-like planets will prove to be quite rare. Which of the following statements best sums up the current status of the debate over this hypothesis?
 
  A) It is no longer discussed, because as part of its broad cover-up of UFOs, the United States government has classified all the material relating to this debate as Top Secret.
  B) We do not have enough data to settle the debate, because counterarguments can be made for each argument suggesting Earth-like planets may be rare.
  C) The debate raged for a while, but is now settled. We are now quite certain that Earth-like planets are rare.
  D) The debate raged for a while, but is now settled. We are now quite certain that Earth-like planets are common.

[TDubDCFL]

Answer to Question 1

These stars appear younger than their neighbors because they result from mergers of stars in the close conditions in dense globular clusters.

Answer to Question 2

B

[cool]

YES! Correct, THANKS for helping me on my review

[samiel-sayed]

Gracias!