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 have ever heard that Earth will soon start having 25-hour days, it might be right. The idea itself is not wrong.

Xi Zhang, a professor of Earth and planetary science at UC Santa Cruz, has discovered that an exoplanet classed as a ...

The familiar 24‑hour day is based on how long it takes the Sun to return to the same position in our sky, not on an ...

The rotation is slowing down due to tidal friction from the Moon, lengthening the day by approximately 1.7 milliseconds per century.

The asteroid Apophis, also known as 99942 Apophis, will have its historic close approach to Earth on Friday, the 13th of ...

At the Houston Museum of Natural Science they recently made a disturbing discovery: their Foucault pendulum had stopped ...

New analysis suggests that problems with NASA’s MAVEN Mars orbiter may be more serious than a simple communications glitch.

Astronomers have found a colossal spinning structure in space. Galaxies within this formation appear to spin together with a ...

For nearly a billion years, Earth’s rotation stopped slowing down. Locked in a rare cosmic balance, the planet’s day remained fixed at 19 hours, stalling the normal progression toward longer days.

Interstellar comet 3I/ATLAS has gotten new viral claims that it is targeting the Sun with strange wobbling jets. We break ...

When Santa is done delivering presents on Christmas Eve, he must get back home to the North Pole, even if it's snowing so ...