It was far from obvious that Wilcox, a 38-year-old long distance bike racer grew up in Alaska and now lives in Tucson, had ridden 14,000 miles on her way to the record for fastest ...

An asteroid will come close enough to Earth to temporarily enter its orbit at the end of the month, a phenomenon dubbed as ...

The asteroid was discovered in August and is set to become a mini-moon, spinning around Earth in a horseshoe shape for about ...

Earth about to pull tiny space rock into its orbit as temporary ‘mini moon’, scientists say - Space rock to orbit Earth for ...

This new floating rock is only expected to orbit the Earth once, beginning its trip Sept. 29 before breaking off from its ...

A new study co-led by the Smithsonian and the University of Arizona offers the most detailed glimpse yet of how Earth’s ...

Researchers show the average surface temperature on our planet has shifted between 51.8 to 96.8 degrees Fahrenheit ...

A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, ...

An effort to understand Earth’s past climates uncovered a history of wild temperature shifts and offered a warning on the ...

Earth is getting a second moon! Yes, you read that right. From September 29 to November 25, "mini-moon"—an asteroid— will ...

A newly discovered doughnut shape in Earth's outer core may reveal elements that help drive the formation of the planet's ...