Research roundup: 7 cool science stories we almost missed Sperm gets lost in space; raccoons solve puzzles; the physics of folding a crepe; and more. https://arstechnica.com/science/2026/04/research-roundup-7-cool-science-stories-we-almost-missed-3/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social