The science behind why the Earth will spin just a little bit faster on July 9, July 22, and August 5, this year.

Together, the tangential and radial velocities add up to gives us our overall orbital velocity, which changes with distance from the Sun. In fact, at perihelion today we’ll be moving around the ...

(OK, Earth's orbit is not a perfect circle, ... Now let's imagine the moon only interacts with Earth. Recalculating, I get an acceleration of the moon of 2.7 millimeters per second squared.

In the Chinese science fiction film The Wandering Earth, recently released on Netflix, humanity attempts to change the Earth's orbit using enormous thrusters in order to escape the expanding sun ...

Even if we can prevent a global warming apocalypse, our planet won’t be safe forever – the sun will one day expand. So should we try to move the Earth to a wider orbit?