You find yourself on a silent airless world The lack of an ...

[pepyto]

You find yourself on a silent airless world The lack of an atmosphere means that you must be very careful not to look at the Sun so that you will not be blinded by its ultraviolet and X-ray radiation.
 
  However, you are able to determine that the Sun has about the same angular size that you are used to on Earth. Although this world is clearly lifeless, you are surprised to find footprints and car tracks etched in the powdery surface.

Question 2

Most pulsars are observed only as ________ sources.
 
  A) X-ray
  B) radio
  C) gamma-ray burster
  D) visible lighthouse
  E) ultraviolet repeating

[pangili4]

Answer to Question 1

You are on the Moon. The presence of car tracks indicates that you are near the landing sites of either Apollo 15, 16, or 17, since those are the missions that brought cars with them to the Moon.

Answer to Question 2

B

[pepyto]

TYSM

[mochi09]

Excellent