While precious summer hours are slowly ticking away, fall-like weather may be nice enough to get outside on the weekends for weeks yet. In case you weren't paying attention, fall returns on Sept. 22.

The USGS regularly samples more accessible volcanoes, but has no helium data from Rainier. Bachman's specimens, collected in tiny copper tubes, will provide a baseline. Harrold, a University of ...

People might not believe it if they haven't been to Missouri, but the state, which is also known as the Cave State, is home to over 7,000 caves offering a plethora of breathtaking subterranean ...