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Why might the Cassini-Huygens probe to Titan be considered disappointing to
exobiologists?
The mechanism by which planetary nebulae shine is very similar to that powering
________.
The most abundant gas in the Earth's atmosphere is ________.
In design, most radio telescopes, like Arecibo, are ________.
The moon ________ may have erupted to create the E rings around Saturn.
The absorption or accretion of smaller galaxies into larger ones is called ________.
The planet with the least obvious ring system is ________.
What is the future of Triton?
Why is Earth a stronger radio emitter than the Sun?
Plate ________ is the process by which convection within the mantle reforms the crust
above it.
The optical classification of galaxies was pioneered in the 1930s by ________.
Explain how Kepler's laws allow us to use the motion of an asteroid to find its average
distance from the Sun.
To find the distance of nearby stars, we use their parallaxes obtained over
________-month intervals.
Relate black holes in the early galaxies to quasars.
Describe how the motion of Uranus led to the discovery of Neptune.
Name three properties of the solar nebula still seen in planet orbits.
Discuss the extinction of the dinosaurs, relating it to an astronomical event.
With a prime focus reflector, why is digital imaging much easier than using an eyepiece
for visual work?
What observation of extrasolar planetary systems provides strong confirmation of the
condensation theory?
Which is longer, the sidereal or solar day? By how much?
