There’s no doubt that planet Earth is awe-inspiring. That’s even more true for the handful of humans who’ve seen it from space with their own eyes.

“We tend to think of ourselves as a weird, tiny little human being on a very large, powerful planet, and therefore clearly irrelevant to anything that might affect the planet at a planetary scale,” says former NASA astronaut Kathryn Sullivan, who in 1984 became the first U.S. woman to walk in space. “In some ways that’s true. But if you step back and look at the planet in total, you see how richly interconnected and intertwined all the actual systems are.”

Even with all its magnificence and majesty, Earth is also just kind of