Fifty years after a fossil skeleton of Australopithecus afarensis was unearthed in Ethiopia, we know so much more about how ...
A day on Earth lasts 24 hours ... with a slight slowing of Earth’s rotation observed by atomic clocks. IERS last added a “leap second” on December 31, 2016, to counteract the planet ...
Please verify your email address. Your browser does not support the video tag. Last Day On Earth: Survival is one of the best survival games for mobile devices. In it ...
Dr. Shannon Schmoll, director of Michigan State University’s Abrams Planetarium, said an asteroid’s orbit must follow a ...