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SPECULOOS Uncovers Earth-Sized Exoplanet Just 55 Light-Years Away


Astronomers have just revealed the existence of an Earth-sized planet around SPECULOOS-3, a nearby star similar in size to Jupiter and twice as cold as our Sun. The SPECULOOS project has just discovered a new Earth-sized exoplanet around SPECULOOS-3, an "ultracool dwarf" star as small as Jupiter,

SPECULOOS 3 is only the second planetary system to be discovered around this type of star: “SPECULOOS-3 b is practically the same size as our planet,” explains the astronomer Michaël Gillon, first author of the article published in Nature Astronomy. “We designed SPECULOOS specifically to observe nearby ultra-cool dwarf stars in search of rocky planets that lend themselves well to detailed studies,” comments Laetitia Delrez, astronomer at the University of Liège. Thanks to the financial support of the Walloon Region and the University of Liège, two new telescopes, Orion and Apollo, will soon join Artemis on the plateau of the Teide volcano in Tenerife, to speed up the hunt for these fascinating planets,” concludes Michaël Gillon.

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