When my colleagues and I send them out to explore our solar system, it's important for us to understand the 3D map of our ...

Earth takes 24 hours to complete a full rotation in a standard day, equal to exactly 86,400 seconds. July 9 was the first of three days in which a millisecond or more could be shaved off the clock on ...

Brazil's Lula squares up to Trump, measles cases hit a 33-year high, and more Length: Long Speed: 1.0x If you’re the kind of person who gets a lot done, you’re grateful for every one of the 86,400 ...

As just one of all the living creatures on Earth, you're along for the ride as our planet constantly moves in two major ways. When you purchase through links on our site, we may earn an affiliate ...