Six Grandfathers Mountain<p><span class="h-card" translate="no"><a href="https://noc.social/@ssoper" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>ssoper</span></a></span> <br>RE<br>significance of this discovery <a href="https://mastodon.social/tags/exoplanets" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>exoplanets</span></a> </p><p><a href="https://mastodon.social/tags/UniversityofCambridge" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UniversityofCambridge</span></a>...the best _explanation_...is that <a href="https://mastodon.social/tags/K218b" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>K218b</span></a> is covered with a warm ocean, brimming with life</p><p>“This is a revolutionary moment, the first time humanity has seen potential <a href="https://mastodon.social/tags/biosignatures" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>biosignatures</span></a> on a <a href="https://mastodon.social/tags/habitableplanet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>habitableplanet</span></a>"</p><p>But we need to remember it's estimated to take 300,000 years to the nearest <a href="https://mastodon.social/tags/exoplanet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>exoplanet</span></a> 12 <a href="https://mastodon.social/tags/lightyears" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>lightyears</span></a>, so K21-18b is 3 million years away<br>Super fast travel speed is limited by dust, fuel and killer time</p>