151. White dwarf star: What is Chandrasekhar's limit?
The min. mass
The max. brightness
The max. density
The max. Mass
152. Which is the nearby satellite galaxy of the Milky Way?
Small Magellanic Cloud
Sagittarius Dwarf Sphr
Canis Major Dwarf
Ursa Major II Dwarf
153. How fast the universe is expanding?
86.5 km/ sec/ Mpc
74.3 km/ sec/ Mpc
101 km/ sec/ Mpc
54.8 km/ sec/ Mpc
154. What determines a star's life span?
155. What is the name of the largest rift system in Mars?
156. Which is not an inner planet?
157. Pluto is approximately the size of:
158. What is considered the largest impact event on Earth in recent history?
Sutter's Mill meteorite
1930 Curuçá River event
159. Which is the only moon known to have a magnetosphere?
160. What is the escape velocity of Jupiter?