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12th Grade Transit Method Quizzes , Questions & Answers

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Scanning Alien Skies: Transmission Spectroscopy Explained

Scanning the air of an alien world. As starlight passes through a planet's atmosphere, the gases there leave a chemical signature. This transmission spectroscopy explained quiz looks at how we search for water, oxygen,...

Questions: 20 | Attempts: 13 | Last updated: Feb 20, 2026

Sample Question 1
In transmission spectroscopy explained simply, what light is being analyzed by the telescope?

Light reflected off the planet's surface

Starlight that has passed through the planet's atmosphere

Light emitted by the planet's core

Light from distant galaxies behind the planet

Light from the star's corona only

Sample Question 2
Exoplanet atmosphere detection via transmission spectroscopy occurs during the secondary eclipse when the planet is behind the star.

True

False

Sample Question 3
Why does an exoplanet appear "larger" at certain wavelengths when reading atmospheric spectra?

The planet physically grows

The atmosphere is more opaque at those wavelengths

The star gets smaller

The planet moves closer to the telescope

Gravity bends the light more

12th Grade Transit Method Quizzes , Questions & Answers

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