What was it like when the Sun was born?

<p>Although the Universe was only two-thirds of its present age back when the Sun was first forming, things back then were already very similar to how they are today. The Milky Way appeared relatively isolated: the second-largest member of a relatively modest group of galaxies. Low-mass dwarf galaxies would be seen slowly merging and being gobbled up by larger ones, just like they do all over the Universe. And throughout the Milky Way, hundreds of billions of stars are already shining, with gas clumps occasionally contracting along its spiral arms to trigger new waves of star-formation. There are anywhere from tens to hundreds of these regions active in our galaxy at any time.</p> <p><a href="https://medium.com/starts-with-a-bang/what-was-it-like-when-the-sun-was-born-c07d0c0c4dfa"><strong>Learn More</strong></a></p>