Extraterrestrial entities “25 years”

 

1) A discussion between Seth Shostak and Pete Ward starts around minute 19. What does Seth Shostak joke that astrobiologists will be saying about extraterrestrial entities “25 years” from when this recording was made (2007)? (In Video 2)

a)Civilizations worth bothering about are rare
b)Unicorns are rare
c)Life is rare
d)Planets outside our solar system are rare
Question 2:Chris Mckay said that there are “…places on Earth where life is living in environments that would be analogous…” to environments on Saturn’s moon Enceladus. What are two of these places on Earth?
a)Deep in the lava of active volcanoes
b)Deep in the mines of Africa
c)Anywhere in the atmosphere 20 feet above the Earth’s surface
d)Deep water ecosystems
Question 3:cott Sanford’s research on comets supports what hypothesis that you learned about in Module 1? (Hint: He discusses this for about 5 minutes starting around min 13 in “What life is out there?”, and Rocco Mancinetti also mentions data supporting the hypothesis starting around minute 16)
a)The vent origin of life hypothesis
b)The organic soup hypothesis
c)The chemical evolution hypothesis
d)The seed hypothesis

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