Thousands of people packed Sunday’s Boulder Jewish Festival at the Pearl Street Mall in Colorado — not far from the site of last week’s antisemitic firebomb attack.

Activists have regularly disrupted council meetings to demand that the city call for a cease-fire in Gaza. The unusual tension suggests a changing Boulder.

The family of the suspect in the recent attack in Boulder, Colo., are set to be taken into federal custody, Homeland Security Secretary Kristi Noem said Tuesday.

The Sombrero galaxy has long had a place in astronomical history as an intriguing object. The first written record of this galaxy was noted in 1781, almost 250 years ago, by Pierre Méchain, a ...

A 45-year-old man used a makeshift flamethrower and lobbed Molotov cocktails at pro-Israel demonstrators in a Boulder attack now being investigated by the FBI as an act of terrorism. Colorado law ...

What is a Molotov cocktail, the incendiary weapon that Boulder Police Chief Stephen Redfearn indicated was used in an attack on Sunday?

Flowers were left at the site, and people gathered Monday to honor the 12 people injured in the attack targeting people advocating for the release of hostages being held by Hamas.

The Boulder terror attack by Mohamed Sabry Soliman raises national security concerns over Biden's immigration policies, highlighting visa overstays and work permits.

The White House revealed the suspect in the Boulder, Colo., attack as an 'illegal alien' who overstayed his visa.

M104, also known as the Sombrero Galaxy, is an edge-on spiral visible with binoculars or a telescope in Virgo this evening.

Astronomers are applying new image-processing techniques to previously released Hubble observations in honor of the space telescope's upcoming 35th anniversary.

Innovation at the University of Colorado Boulder reached an unprecedented milestone in fiscal year 2023-24 by launching 35 startup companies based on university innovations. This achievement shattered ...