The lost history of moon trees. Not quite as exciting as it sounds, but still really cool. Plus, the lineup of new emojis that just dropped on iOS 15.4––as well as a new study showing how emoji use can be an early detector of remote work burnout. And Moderna’s HIV vaccine has entered human trials. Sponsors:Jenni Kayne, Use code KRH at jennikayne.com for 15% off your first orderMunk Pack, Use code KRH at Munkpack.com for 20% off your first purchaseLinks:We Almost Forgot About the Moon Trees (The Atlantic)The Moon Trees (NASA)Is There An Apollo 14 Moon Tree Near You? (Universe Today)Moon Trees Stand as Living Testaments to First Voyages to Moon (NASA)Can you help us find the Moon Trees? (Royal Astronomical Society)Buy a Half Moon Tree Seedling (American Heritage Trees)First Look: New Emojis in iOS 15.4 (Emojipedia)Can emoji use be the key in detecting remote-work burnout? (Phys.org)Moderna's HIV Vaccine Has Officially Begun Human Trials (them.)Hunting the holy grail: the marred history of HIV vaccine trials (Clinical Trials Arena)Moderna begins early-stage trials of mRNA-based HIV vaccine (Engadget)The F.D.A. grants Moderna’s vaccine full approval. (NY Times)Kottke.OrgJackson Bird on TwitterSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.