Gravity does a number on your body. But in space with zero gravity, your body changes and reacts differently than it does on Earth. So what happens to your body in Space? As astronaut Leland Melvin tells it, you actually gain an inch of height! Also, your heart gets a little bit smaller while changing shape, your bones become brittle, and your eyesight gets all funky. But it’s all absolutely worth it because like, space.
Earlier this week, Chinese researchers reported that they edited the genes of human embryos using a new technique called CRISPR. While these embryos will not being growing up into genetically modified people, I suspect this week will go down as a pivotal moment in the history of medicine. David Cyranoski and Sara Reardon broke the news today at Nature News. Here I’ve put together a quick guide to the history behind this research, what the Chinese scientists did, and what it may signify.