The 20 biggest cosmic discoveries of the last 20 decades 200 years ago, we didn't even know what the stars were, much less what the Universe was. These 20 big steps, one per decade, help illustrate exactly how we got here. bigthink.com/starts-with-... #space #astro #cosmology
The 20 biggest cosmic discoveries of the last 20 decades200 years ago, we hardly knew anything about our Universe on cosmic scales. Today, there's so much that we know. Here's how we arrived.bigthink.com
