Rocks older than 4.03 billion years could shed light on Earth's earliest geological history, but they're incredibly rare.

Just last year, Steinmetz showed up to a Boulder City Council meeting in support of her local Jewish community. A woman sat next to Steinmetz, she recounted in a video interview in June 2024.

National Weather Service (NWS) in Boulder issued a severe thunderstorm watch until 8 p.m., which includes the Denver metro ...

BOULDER, Colo. — After years of planning and fundraising, construction is now underway to restore the historic Boulder Theater—just as the city prepares to host the Sundance Film Festival in ...

The City of Boulder has begun upgrading Mount Sanitas, improving trails and restoring “sensitive” natural areas at the open space destination.

DENVER — A federal judge said Wednesday that prosecutors can proceed with a hate crime charge against a man accused of hurling Molotov cocktails at a group of people demonstrating in Boulder ...

DENVER — A federal judge said Wednesday that prosecutors can proceed with a hate crime charge against a man accused of hurling Molotov cocktails at a group of people demonstrating in Boulder, Colorado ...