Ancient Greek astronomer Aristarchus of Samos proposed a Sun-centered model of the solar system centuries before Copernicus, challenging early views of the universe.

Extreme heat, expanding drought, rising fertilizer costs, and policy changes are shaping a difficult spring for farmers across the U.S., including the Four Corners region.

Far to the North, 300 miles beyond the furthest town, lies the Nahanni National Park. Strange stories ride the winds through soaring peaks and down cascading rivers.

The unseasonal warmth that broke longstanding temperature records across the West last week was a hit to Colorado's already low snowpack. Climate change drove the heat wave, but scientists say it's still an outlier in today's world.

People come to the Roaring Fork Valley from all over the world; some stay and decide to make it home. A handful of these immigrants shared stories of success, adventure, growth and validation in Basalt earlier this month as part of English in Action's 9th annual Immigrant Voices event.

Hot, dry, and windy conditions bring critical fire danger to western Colorado today, with Red Flag Warnings in effect. Cooler temperatures, rain, and mountain snow arrive Tuesday.

Estevan López, New Mexico's water negotiator, said talks resumed March 2, and the upper and lower basin states are using a short-term pitch from Nevada as a starting point.

Cortez voters are being asked to decide four ballot questions in addition to choosing candidates for five open seats in the April 7 municipal election. City manager Drew Sanders explained the questions at a forum Thursday before a handful of people.

Riders are seeing mostly dry trails at Boggy Draw, with some sandy and muddy spots lingering. Warm, windy weather continues as local trail events and volunteer opportunities ramp up.

The Navajo Nation has come out in formal opposition to the SAVE America Act, saying it would disproportionately affect Navajo voters and other indigenous tribal communities nationwide.