Question #3bf09

1 Answer
A.J.
Jan 21, 2018

Transit has been used.

Explanation:

Scientists use special telescopes and watch the light waves coming from a specific star. When the light waves ‘wobble’ it means that an possible planet sized object is has transitioned between the star and the observing telescope. Using the degree of wobble they can determine how big the object is and possibly what it is composed of.

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