Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes and 4 seconds with respect to other distant stars. Scientists call this difference crucial to ...

Human engineering appears to have moved the planet, literally. According to new research published this month, the global boom in dam construction over the past two centuries has caused measurable ...

Add Yahoo as a preferred source to see more of our stories on Google. Global warming has slightly slowed the Earth’s rotation — and it could affect how we measure time. A study published Wednesday ...

Humanity's increased release of greenhouse gasses has raised the planet's temperature, and no one expects that to stop any time soon. As the globe warms, a study shows it is also spinning more slowly.

Why does the Earth’s tilt create our season? The Earth orbits the Sun, but with a tilt. That tilt is important to those of us on the planet because it creates our seasons. How does that work? What ...

The answer, obviously, is really, really fast. Here, Universe Today‘s Fraser Cain tells us exactly how fast, and gives us answers to a few other things you may have wondered about before. For instance ...

Climate change is causing so much polar ice melt that it’s slowing down Earth’s rotation and — here’s the kicker — it will alter how we measure time in the future. That’s the outrageous conclusion ...

We know Earth’s rotation on a cosmic scale, but seeing it close up requires quantum mechanics. Interferometry is the use of light waves, sound, etc., to identify changes in matter or motion. New ...

A simple explanation of Earth’s rotation speed, how it creates day and night, and how scientists measure the planet’s motion.