Copper mine foes asked a judge to stop the government from acting on Oak Flat mine plans until Supreme Court rules.

A U.S. District judge will hear arguments May 7 in a case over whether the federal government can complete a land swap for a ...

The Trump administration plans to move ahead with a land swap that would enable work to start on a huge copper mine at Oak ...

Nadine Barlow’s focus at NAU was craters, so the NAU and Flagstaff astronomy community thought it was only fitting to name a crater on Mars ... had a generational impact on students.

Outdoor enthusiasts might want to use Flagstaff as their base in ... to be one of the best-preserved meteor impact craters in the world. The crater is 3,900 feet (1,200 m) across and 560 feet ...

Understanding this status requires a deep dive into the geological past and potential future eruptions that could impact urban societies ... Image via Openverse. Flagstaff sits near the San Francisco ...

Why it's incredible: Evidence suggests it could be the greatest known impact crater on Earth. The Wilkes Land crater is a hole in the bedrock beneath East Antarctica's ice sheet measuring 315 ...

New research in Sweden has uncovered perplexingly high methane emissions coming from the largest meteorite crater in Europe. The Siljan Ring is a prehistoric impact structure in central Sweden ...

"While the impact crater itself has yet to be found, this study has collected further clues that could finally reveal its location. "Understanding when meteorite impacts occurred helps us explore ...

New research in Sweden has uncovered perplexingly high methane emissions coming from the largest meteorite crater in Europe. The Siljan Ring is a prehistoric impact structure in central Sweden that ...