This hot Jupiter exoplanet unexpectedly hangs out with a super-Earth

Wednesday, May 24, 2023 - 05:03 in Astronomy & Space

A cloudy Jupiter-like planet orbiting close to a fiery star, in an illustration based on space telescope observations. NASA/JPL-Caltech Our solar system has a suite of eight planets—rocky Mars and Earth, the ice giants, and massive gas planets—but other stars often have a much smaller group. Some suns have just one exoplanet orbiting around them. These loner worlds are often one specific type: A huge gas giant that orbits very close to its star, known as a hot Jupiter. A newly discovered exoplanet, however, has challenged this view, showing that maybe not all hot Jupiters go solo. Last week, astronomers announced that a hot Jupiter orbiting a star 400 light years away has a pal: It shares its solar system with WASP-84c, a rocky planet so large it’s known as a super-Earth....

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