History A new digital archive contains 374 US-Native American treaties, available for the first time ever Thom Dunn

smithsonian The origin story of that all-American toy, Slip 'N Slide Andrea James

youtube 'Aerial America' series is now on YouTube Andrea James

museums Adam Savage goes behind the scenes at the Smithsonian's Exhibits Central Gareth Branwyn

Science Help climate scientists by transcribing weather data from old ships' logs Cory Doctorow

art New smartphone app lets museum visitors point at art, then see artists discuss the work Andrea James

Science Digitizing the past and present at the Library of Congress Rob Beschizza

music First new music from Mozart in 250 years Allan Rose Hill

music Polaris Dawn astronaut performs music from Star Wars with orchestras around the world Gail Sherman

Forever Chemicals Teflon: Miracle invention or slow-acting poison? Why not both! Mark Frauenfelder

Space Doomsday vault on the Moon would hold back-up of Earth's plants and animals Allan Rose Hill

olympics WTF is the Paris Olympic mascot? Gail Sherman

butter Butter made from carbon dioxide instead of animal fat Allan Rose Hill

water How an Angel shark's appearance changes when it yawns Popkin

ramen Leftover ramen harming mountain ecosystem Allan Rose Hill

muppets Amphibia is a cologne for man, woman and frog Gail Sherman