7 asmr
A gas particle will escape a planet's atmosphere if it moves faster than the ...
"escape speed"
The gas in the solar nebula began at a temperature of about ....
2000 K
During the Tunguska Event, people were thrown 20 feet through the air, even though they were ________ away from the explosion.
40 miles
If the peak wavelength of a star at rest is 615 nm, then what peak wavelength is observed when the star is traveling 2,500,000 m/s toward the Earth.
609.875
If we could capture the spectrum of an exoplanet, we may find evidence for life on that planet in the form of ....
biosignatures
A planet will keep a large atmosphere if it _________ or __________.
is cold .... has a ton of gravity
The Jovian planets are composed mostly of _______ and _________.
hydrogen .... helium
Jupiter weighs roughly ....
twice as much as all the other planets combined
Which of the following planets in our solar system have rings? (Select all that apply)
A. Saturn B. Neptune C. Uranus D. Jupiter
Why do some astronomers object to the new definition of a planet that was adopted in 2006?
By this definition, Earth, Jupiter, and other planets should not be considered planets.
The discovery of _________ prompted astronomers to reconsider whether Pluto should really be called a planet.
Eris
The _________ for discovering exoplanets looks for tiny dips in light as a planet passes in front of its star.
Transit Method
An explosion the size of the Tunguska Event is likely to happen every ....
few centuries
The moon Titan is special because....
its surface is wet
