Doppler Effect

Can there be anything common between the change in pitch of the sound of a motor bike as it zips past us and the light emitted by distant stars as they move away from us? Yes! They are subjected to the Doppler effect.

Are there worlds outside our Solar System? How do we look for them? What can we learn from them? In this article, the author shows how recent advances in technology have made the search for exoplanets more exciting than ever before!

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