The Earth's core is slowing down and now spinning in the opposite direction. What does this mean? The rotation of the Earth's core has changed, and scientists are wondering what could be causing it.

Add Yahoo as a preferred source to see more of our stories on Google. Melting ice cuticles in Antarctica on Feb. 8. (Şebnem Coşkun) Climate change is altering the Earth to its literal core, new ...

If Earth suddenly stopped rotating, inertia, extreme winds, massive earthquakes, and climate collapse would reshape the ...

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 ...

This scientific discovery suggests that Earth may have once had multiple moons. Astronomers have developed the most plausible scenario for a massive collision between Earth and another large planet, ...