2020 in Science: A SpaceX Bonanza, Lab-Grown Brains, and More

If you’re an astronaut, you’re used to being treated both like royalty and like a lab animal—imperial guinea pigs, perhaps. Next year, these august examinees will enroll in a new kind of experiment as they strap themselves into the first private, human-ready spacecraft to lift off of US soil. That’s not the only historic event […]