Dr. John Barentine FRAS<p>A neat story by <span class="h-card" translate="no"><a href="https://mastodon.social/@DrCarpineti" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>DrCarpineti</span></a></span>: "'This is the quadfecta, completing the set of observing auroral emissions from all of the four giant planets in the infrared. We knew it should be there since Neptune has all the ingredients you need to create aurorae, but we were never able to detect it using telescopes on the ground.'"</p><p><a href="https://www.iflscience.com/neptunes-lost-aurorae-first-hinted-at-36-years-ago-has-been-captured-for-first-time-78562" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">iflscience.com/neptunes-lost-a</span><span class="invisible">urorae-first-hinted-at-36-years-ago-has-been-captured-for-first-time-78562</span></a></p><p><a href="https://astrodon.social/tags/PlanetaryScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PlanetaryScience</span></a> <a href="https://astrodon.social/tags/Neptune" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Neptune</span></a> <a href="https://astrodon.social/tags/GiantPlanets" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GiantPlanets</span></a> <a href="https://astrodon.social/tags/IceGiants" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IceGiants</span></a> <a href="https://astrodon.social/tags/SolarSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SolarSystem</span></a></p>