Finding exoplanets

Find out about exoplanets are found.

1. How Kepler finds planets Rated: 3/5 by physics.org users

How Kepler finds planets

Play exoplanet hunters in this interactive from NASA and discover how Kepler searches for habitable exoplanets outside our solar system using the transit method. Requires flash.

2. Doppler shift Rated: 3/5 by physics.org users

Doppler shift

An explanation of Doppler shift, which occurs when the light emitted by a moving star for example changes wavelength (known as redshift or blueshift).

3. Gravitational Lens Rated: 2/5 by physics.org users

Gravitational Lens

Since light is bent by a gravity field according to general relativity, there is a possibility of focusing effects like that of a lens when there is a large collection of mass near the path of the light to us.

4. How Kepler finds planets Rated: 3/5 by physics.org users

How Kepler finds planets

Play exoplanet hunters in this interactive from NASA and discover how Kepler searches for habitable exoplanets outside our solar system using the transit method. Requires flash.



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