Contrast the Oort Cloud and the Kuiper Belt
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In the Oort Cloud comets have orbits up to 50,000 A.U. from the Sun. These comets reach the inner solar system through having their orbits perturbed. We then see the comets as they pass close to the Sun. Sedna is the first body which stays out in the Oort Cloud to be found. By contrast, Kuiper Belt Objects orbit close to the ecliptic plane, and just beyond the orbit of Neptune. Like Pluto, several other KBOs are in a 3:2 orbital resonance with Neptune.
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Small telescopes are often advertised as " 200 power" or "magnifies 200 times." How would you change these advertisements to market to astronomers?
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The largest known galaxies contain about 10 billion solar masses
Indicate whether the statement is true or false
You push on a block on frictionless ice with a force of 8 N, causing it to accelerate at 2 m/s2 . The mass of the block is __________
Fill in the blank(s) with correct word
Why are scientists saying that we are entering a new epoch—the Anthropocene epoch?
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