Deep beneath our feet, something extraordinary is happening. Scientists have discovered that changes in Earth's core are ...

Earth’s rotation is slowing, lengthening days by milliseconds due to the Moon and climate change. A 25-hour day is millions of years away. Learn more.

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 ...

Earth's days are slowly getting longer. This change is driven by the Moon's gravity and shifts in Earth's mass due to melting ...

Rumors about days extending to 25 hours may hold some truth as scientists observe a gradual slowdown in Earth's rotation.

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 ...