Life in the Cosmos

Questions regarding the search for life away from Earth

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Last updated: July 25, 2019

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First submitted	May 29, 2019
Times taken	20
Average score	35.0%
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Question	Answer
What is the most abundant element within nebulae?	Hydrogen
How is the “Fermi Paradox” normally stated?	"Where is everybody?"
An unstable nucleus that spontaneously decays to produce highenergy particles and radiation is known as ...	Radioactive
What is the surface temperature of the Sun in K?	5778K
The residual polar caps on Mars are made of --- ice	Water
interstellar clouds that contain a very high concentration of dust are known as ...	Dark Nebulae
Stars are born from condensationsin the ...	Interstellar medium
Which terrestrial planet(s) other than Earth have magnetic fields?	Mercury
What does SETI stand for?	Search for Extraterrestrial Intelligence
To the nearest billion years, how old is the Sun?	4.6 Billion Years
What is a small rocky body in the Solar System?	Asteroid
Unlike the Earth, Venus does not have a protective magnetic field because of its ...	Slow Rotation
What temperature is required for the proton-proton cycle to occur?	10 million Kelvin
What is an object composed mainly of dust and ice that comes from the outer solar system towards the Sun?	comet
The total mass of all existing asteroids is 1/--- of that of the Earth	1000
What characteristic allows TItan to have an atmosphere whereas the similarly sized Mercury does not?	tempertaure (Titan is cooler)
An organism that thrives in physically or geochemically extreme conditions is named an ...	Extremophile
Jovian moons are typically made of rock and ---	ice
Which geological features are believed to have been the main source of the Earth's oceans and atmosphere?	Volcanoes
The K-T boundary separates which two periods in Earth's history?	Cretaceous and Tertiary

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