Ancient Chinese astronomers observed a solar eclipse in 709 BCE with remarkable detail. These old records are now helping ...

One of the most exciting questions, particularly when we are discovering that our planet is a ball, is, ‘Why don’t people on ...

For nearly a billion years, Earth’s rotation stopped slowing down. Locked in a rare cosmic balance, the planet’s day remained ...

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

The Terra Hunting Experiment will track the wobbles of dozens of stars nightly for years in the most focused hunt yet for an ...

The Moon is slowly moving away from Earth, a fact confirmed by decades of laser measurements and detailed in a recent ...

Depending on how you look at it, this catchphrase from a 1980s pop song is decently accurate: you can actually melt the ...

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

A team of international researchers has uncovered fresh data on the world's earliest recorded solar eclipse using ancient Chinese texts. These findings could shed light on how the Earth's rotation has ...

Earth's climate has swung between ice ages and warmer periods for millions of years, driven by subtle changes in our planet's ...

The shortest day of the year occurs at the winter solstice, when Earth’s tilt gives the least daylight and the longest night.

Autonomous free-flying robots aboard the International Space Station (ISS) frequently lose their bearings. Without gravity to distinguish up from down, even precision sensors suffer from accumulating ...