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Limits of Astronomical Experiments
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Astronomy
AST.004 Limits of Astronomical Experiments
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Astronomers study an exoplanet atmosphere when starlight passes through it during a transit. Which statement best identifies the limit?
A
They can pump oxygen into the planet's atmosphere to see a stronger oxygen signal.
B
They can drain the planet's atmosphere to measure the solid surface below.
C
They can analyze absorption lines in the light, but cannot add or remove gases from the exoplanet atmosphere.
D
They can turn the planet's clouds on and off during one transit.
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