The massive dome measures 305 feet (93 meters) in diameter, or about the size of a football field and stands 263 feet (80 ...

Astronomers have detected a lone black hole drifting through the Milky Way—an unprecedented discovery made possible by ...

The air is cool, the high desert is nearly completely silent, and the Milky Way stretches like glitter across the sky ...

Video shows lava spurt into the Sicilian sky for the 10th episode of Strombolian activity in six weeks as Europe's tallest ...

Spanning approximately 220,000 light-years across, the Andromeda Galaxy is the largest galaxy of the Local Group, which also ...

The surrounding mountains are home to some of Colorado’s highest peaks. Mount Elbert, the tallest mountain in Colorado at ...

Crested Butte isn’t called the Wildflower Capital of Colorado for nothing. The pace here is set by the seasons, not by the clock. Summer days stretch long and lazy, while winter brings skiers who ...