What's the big deal about Gaia? Just how do you go about creating a 3D map of a galaxy? How many stars would that even be? And how can we know the distances to the stars if we can't travel to them? Released Jun 5, 2021 Popularity 2.1 Trending 1.3 Episodes 1 Update Freq Inactive Priority ★ Normal Bookmark Share: Episodes Similar Podcasts Latest Episodes Loading episodes... View All Episodes You Might Also Like Loading similar podcasts...