Second, and much closer to home, is the mass of the Earth itself. If you have ever seen figure skaters, you know that when ...

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 ...

The planet’s rotation fluctuates as it travels around the sun, and measurements suggest we’re losing more than a millisecond during the long days of summer. By Jacey Fortin This article was updated ...

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 ...

If today feels like it's flying by, you can blame it on our spinning planet: A group of scientists tracking Earth's rotation predicts that the day will be a fraction of a second shorter than normal.

If the atmosphere were not dragged with our planet, you could utilize the insane relative wind speeds to decrease flight time ...

Earth is spinning faster this summer, making the days marginally shorter and attracting the attention of scientists and timekeepers. July 10 was the shortest day of the year so far, lasting 1.36 ...

Star trails over field of wild red poppies on the slopes of Mount Damavand volcano. By utilizing a long exposure, the circular star trails in the sky display Earth's rotation. Photograph by Babak ...

Our planet has been rotating at its fastest since records began in 1973. Earth will complete a full rotation in slightly less time than usual today (July 22), making it one of the shortest days ever ...