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GENS4015-Brave New World T1 2026
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Why does transit-based exoplanet detection have an observational bias toward large planets on short orbits around their stars?
Which of these factors affects the escape velocity from a planet?
Which one of these is not a known risk factor for human health in space?
Why does radial velocity exoplanet detection have an observational bias toward massive planets that orbit close to their stars?
If you are in a spaceship orbiting the Earth and you use your rockets to add energy to your orbit, but not enough to reach escape velocity, which one of the following cannot change?
In this diagram, the semimajor axis of planet B's orbit is twice as large as the semimajor axis of planet A's orbit. Which one of these statements about the orbital period of planet B is correct?
To model the composition of an exoplanet (eg, rock, ice, gas), what information do we need to know? (select all that apply)
Which one of these planet detection methods uses a detection of the planet itself rather than its indirect effects?
Which of these classes of exoplanet were unexpected when they were discovered? Select all that apply.
If there was a planet with the same mass as the Earth but four times the radius, which one of these statements about its escape velocity would be true?