Add Yahoo as a preferred source to see more of our stories on Google. The sun shines above the Earth’s horizon. Perihelion, the point when Earth is closest to the Sun, occurs annually in early January ...

Earth’s spin is not as steady as it looks. As ice melts and groundwater is pumped from deep aquifers to the surface, the planet’s mass is shifting, and with it the position of the rotational axis that ...

James O'Donoghue receives funding from the UK Science and Technology Facilities Council (STFC). Earth will complete a rotation 1.33 milliseconds earlier than usual on Tuesday, August 5. That makes it ...

If you haven’t accomplished as much this summer as you had hoped to, you can blame forces far beyond your control: a few of these dog days, by one measure, are among the shortest you’ve ever lived ...