Finding new worlds
Chapter 1
The first discoveries
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Chapter 2
Shadows and wobbles
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Chapter 3
Extreme and bizarre worlds
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Chapter 4
The search for life
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YOUR GOAL
Master of Finding new worlds
Ch 2 · Shadows and wobbles
teacher Star light dips, star wobbles, Star light dips, star wobbles. A new world's revealed!
Fun Fact
Kepler's gaze: The Kepler Space Telescope was so sensitive it could detect a flea crawling across a car headlight from miles away.
Glossary
exoplanet (noun)
A planet that orbits a star outside our solar system. In 1995, astronomers discovered the first exoplanet orbiting another star by tracking its gravitational wobble.
A planet that orbits a star outside our solar system. In 1995, astronomers discovered the first exoplanet orbiting another star by tracking its gravitational wobble.
Quiz
Which space telescope, launched in 2009, discovered thousands of exoplanets using the transit method?
Quiz
What happens to a star's light spectrum when the star wobbles toward Earth due to a planet's gravity?
Quiz
What physical phenomenon is used in the radial velocity method to detect a star's wobble?
Quiz
What does the transit method tell astronomers about an exoplanet that the radial velocity method cannot?
Quiz
Which detection method relies on a planet's gravity acting like a magnifying glass to bend light?