NASA’s Mars Reconnaissance Orbiter (MRO) has been flying our the red planet for the last 20 years, beaming back images of its ...

China has quietly confirmed that a vast circular scar in its northeast is not a volcanic basin or a quirk of erosion, but a colossal asteroid impact site that ranks as the largest known crater of its ...

When people talk about affordable retirement destinations, Florida and Texas typically dominate the conversation. Arizona enters the chat with Winslow, a place where retirees report their Social ...

Such progress is to be celebrated but it has also come at a cost. Defending a small nation in a turbulent region is a serious ...

A Christmas meteor shower will light up the skies very soon. Here's your complete guide to seeing the Ursids in Arizona and ...

December is hosting two meteor showers. Here is everything to know about the Geminids, when to see them, where they come from ...

Scientists have discovered living microbes producing methane in the fractured rocks deep inside Sweden's Siljan impact crater, offering insights into Earth's earliest life and the search for life ...

Yes. The Geminid meteor shower is active right now and visible nightly in Arizona through mid-December. At its peak, more ...

Because of Earth’s weathering climate and shifting tectonics, impact craters regularly disappear from the Earth’s geologic record. Scientists in China found an impact crater that formed during the ...

NASA's Perseverance rover spotted a possible space rock on the surface of Mars. The meteorite's nickname is 'Phippsaksla.' NASA's Perseverance Mars rover has found a possible meteorite on the surface ...

Baby, it’s cold outside — but it’s worth putting on that heavy winter coat, scarf and boots and heading out for one of the best meteor showers of the year: the Geminids.