Université de Liège<p>The <a href="https://mastodon.online/tags/SPECULOOS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SPECULOOS</span></a> project, led by the astronomer Michaël Gillon from <a href="https://mastodon.online/tags/ULi%C3%A8ge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ULiège</span></a>, has just discovered a new Earth-sized exoplanet around SPECULOOS-3, an "ultracool dwarf" star as small as Jupiter, twice as cold as our Sun, and located 55 light-years from Earth.</p><p>After the famous TRAPPIST-1, SPECULOOS 3 is the second planetary system discovered around this type of star. </p><p><a href="https://www.exotic.uliege.be/cms/c_12662571/en/detection-of-an-earth-sized-exoplanet-orbiting-the-ultracool-dwarf-star-speculoos-3" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">exotic.uliege.be/cms/c_1266257</span><span class="invisible">1/en/detection-of-an-earth-sized-exoplanet-orbiting-the-ultracool-dwarf-star-speculoos-3</span></a></p><p><a href="https://mastodon.online/tags/astronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.online/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://mastodon.online/tags/TRAPPIST" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TRAPPIST</span></a></p>