Giant mega-Earth is 23 times more massive than Earth
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View larger. | Artist’s concept of a giant mega-Earth. The newly discovered mega-Earth GJ 523b is 23.5 times the mass of Earth and 2.5 times its size. Image via Pablo Carlos Budassi/ Wikimedia Commons.
Astronomers have confirmed an unusual planet called GJ 523b. It belongs to a rare group of worlds known as mega-Earths.
The planet is only about 2.5 times as wide as Earth but has more than 23 times its mass. That makes it unusually dense.
Scientists don’t understand how it formed this way.
Astronomers have confirmed an unusual planet called GJ 523b. It belongs to a rare group of worlds known as mega-Earths.
The planet is only about 2.5 times as wide as Earth but has more than 23 times its mass. That makes it unusually dense.
Scientists don’t understand how it formed this way.
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