Multiple Choice
What is the primary reason why a star of twice the mass of the Sun is considered an unlikely candidate for having an extraterrestrial civilization?
A) It is too hot and emits too much ultraviolet radiation.
B) The star's gravity is too strong.
C) Its main-sequence lifetime is too short.
D) Planets would form too close to it.
Correct Answer:
Verified
Correct Answer:
Verified
Q48: The meteorite ALH 84001 was discovered in
Q100: The project that recruited millions of people
Q102: The Drake equation attempts to predict the<br>A)
Q103: A large part of NASA's funding currently
Q104: The ALH 84001 specimen is an SNC
Q106: Where have extremophiles NOT yet been found?<br>A)
Q107: Describe the extreme conditions on Earth in
Q108: Astrobiology is the study of life in
Q109: The most promising destination for future missions
Q110: The organic molecules needed for life to