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Going beyond earthlike planets

Fascinating as it would be to discover an exoplanet similar to our world, there's a lot more to learn about when it comes to extrasolar planets.
HD 69830
Artist view of planetary system around HD 69830.
ESO
Astrophysicist Alan P. Boss looked into the formation of a variety of exoplanets by asking, "How do you make a giant exoplanet?"

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