ScienceActually<p>Jupiter formed less than 3 million years after the birth of the solar system, making it the eldest planet. Saturn formed shortly after, amassing less material since Jupiter gobbled such a large portion of the outer disk.</p><p><a href="https://sfba.social/tags/science" class="mention hashtag" rel="tag">#<span>science</span></a> <a href="https://sfba.social/tags/sciencefacts" class="mention hashtag" rel="tag">#<span>sciencefacts</span></a> <a href="https://sfba.social/tags/jupiter" class="mention hashtag" rel="tag">#<span>jupiter</span></a> <a href="https://sfba.social/tags/protoplanet" class="mention hashtag" rel="tag">#<span>protoplanet</span></a> <a href="https://sfba.social/tags/planet" class="mention hashtag" rel="tag">#<span>planet</span></a> <a href="https://sfba.social/tags/accretiondisk" class="mention hashtag" rel="tag">#<span>accretiondisk</span></a> <a href="https://sfba.social/tags/aarp" class="mention hashtag" rel="tag">#<span>aarp</span></a> </p><p><a href="https://www.planetary.org/articles/solar-system-history-101" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://www.</span><span class="ellipsis">planetary.org/articles/solar-s</span><span class="invisible">ystem-history-101</span></a></p>