On Saturday morning, a major rockfall occurred on the North Face of the Eiger, covering the Swiss valley in a cloud of dust.

The results are in line with theory — but the key to an accurate measurement was understanding how dusty the galaxy is.

Tree falls from elevated height in Zion National Park, injuring one hiker and temporarily closing popular trail.

In a matter of seconds, the tallest building in Lake Charles disappeared from the city’s skyline. The Capital One Tower, ...

The International Day of Clean Air is an opportunity to learn about a growing global threat with severe negative effects on ...

Arizona has had dust storms for ages, but we've only recently started calling them haboobs.

Survivors' Exposure To Toxic Dust And The Chronic Health Conditions That Followed Offer Lessons That Are Still Too Often ...

Instead, it arcs to the north after blowing out over the ocean. Earlier in the summer, however, several clouds of fine dust ...

A large piece of rock broke off on the north face of the Eiger on Saturday morning, causing a massive cloud of dust, as reported by the Tagesanzeiger. Such rockfalls are not uncommon, explains Kathrin ...

University of Iowa professor worked on a study measuring the dusty plumes from gravel roads after cars drive by.

See 13 of the week’s most interesting images from around the world, as selected by Washington Post photo editors.

The 22-story Capital One Tower went down in an implosion early Saturday morning, collapsing in a cloud of dust. The building ...