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See microlensing in action | Astronomy.com

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See microlensing in action

FROM THE June 2012 ISSUE

See microlensing in action

Hereт??s how astronomers detect free-floating planets.

By Michael E. Bakich Тљ|Тљ Published: Monday, April 23, 2012

NASA/JPL-Caltech

In the June issue of Astronomy, author Steve Nadis wrote т??Do billions of rogue planets drift through space?т?? His story talks a great deal about a technique astronomers use called gravitational microlensing.

This NASA artistт??s animation illustrates the technique used for finding free-floating Jupiter-mass planets in space. Astronomers think gravitational interactions ejected such worlds early on from their developing solar systems.

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