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WorksheetsFermi paradox
Total questions: 15
Worksheet time: 8mins
What is the habitable zone?
the area in the universe where life could exist
the area on a planet where life could exist
the area in a galaxy where life could exist
the area around a star where life on a planet could exist
What is a Type 1 civilization?
Able to harness all the available energy on its planet
Able to harness all the available energy of its home star
Able to harness all the available energy in its galaxy
What is the Fermi Paradox?
Even with the huge number of planets in the Milky Way, we haven't seen any signs of aliens
It would take a couple of million years to colonize the whole galaxy.
There are three different possible levels for a civilization.
There are no aliens in the universe.
A "great filter" is something that "filters out" life over time. In other words, barriers that make it difficult for life (a civilization) to continue to grow, develop, evolve, and expand.
True
False
What is the first option for a Great Filter explanation of the Fermi Paradox?
there are great filters and we have already passed through them
There are no great filters
The formation of Earth was not as hostile as it is for other civilizations.
What is the second possible Great Filter explanation for the Fermi Paradox?
There are great filters and they are all ahead of us.
Technology is the great filter that will destroy humanity.
There are no great filters.
Climate change is a great filter.
Another possible explanation for the Fermi Paradox is that humans are alone in the universe. Is this a "great filter" explanation?
yes
No
Which is the best definition of Fermi Paradox?
The contradiction between the lack of evidence for extraterrestrial intelligence and the presumed high probability of them.
The idea that there is definitely intelligent life in the universe.
A hypothetical megastructure that completely encompasses a star and captures a large percentage of its power output.
Even in theory, it is impossible to travel to other stars
true
false
How long has there been life on Earth?
250,000 years
8.4 million years
3.6 billion years
100 trillion years
How long have we had technology that can communicate over long distances?
about a century (100 years)
20 years
10 years
three centuries (300 years)
____% of all species on Earth have died out.
99
1
23
75
One explanation or solution for the Fermi Paradox is that our technology is not yet advanced enough to communicate with any intelligent life elsewhere in the universe.
True
False
What is the Matrioshka Brain?
A hypothetical mega-structure surrounding a star into which an entire species can upload their consciousness and exist in a simulated universe.
A hypothetical megastructure that completely encompasses a star and captures a large percentage of its power output.
A hypothetical megastructure made of mayonnaise :)
How long could the matrioshka brain hypothetically be powered for?
100,000 years
800 billion years
10 trillion years
