PBS Space Time
The Most Important Satellite You’ve (Probably) Never Heard Of
2025 • E18 Sep 4, 2025 15m
One of the most important reasons we go to space is to know our own planet better. Today I'm going to tell you about an orbiting facility that literally watches Earth's biosphere breath and grow and die with incredible resolution. I'll talk about its profound existential and economic importance, and about why it's in danger of being lost.
