Impact simulation Jingyao Dou A Neptune-sized planet denser than steel has been discovered by an international team of astronomers, who believe its composition could be the result of a giant planetary clash. TOI-1853b's mass is almost twice that of any other similar-sized planet known and its density is incredibly high, meaning that it is made up of a larger fraction of rock than would typically be expected at that scale. In the study, published today in Nature, scientists led by Luca Naponiello of University of Rome Tor Vergata suggest that this is the result of planetary collisions.

https://www.miragenews.com/university-of-bristol-discovers-giant-planet-1074830/

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