Article Geckos Geckos and girdled lizards are transitional, between the sight hounds and the nose hound. Scampering up the wall. Hanging from the... Article The Sun and the Atom Bomb Decades after Einstein published his famous equation, E=mc2, other scientists realized that it did explain a number of physical phenomena.... Article A Matter of Time Time seems to follow a universal, ticktock rhythm. But it doesn't. In the Special Theory of Relativity, Einstein determined that... Article First Encounters The Horse | American Museum of Natural History Article Time Machines What time is it? That depends on how fast you're traveling. Thanks to Einstein, we know that the faster you go, the slower time... Article Protecting Wild Horses Across the globe, there are small populations of wild horses that roam free, ridden by no one.   New Approach Helps Teachers Integrate Conservation Biology Into High School Ecology Classes     Catholuminescence     Polar Bears Can't Eat Geese Into Extinction   Programs and Events Related Programs Visit the Museum this season for exciting programs about whales and oceanic habitats. Article Acknowledgements Public and private support for Project 1640. Article Collaborators