Latest Depressions Stories
Officials with the City of Boston are now testing a new app designed to detect potholes.
Asteroid impact craters are found all over the Earth, but most are erased by erosion or covered by time. The date has moved a billion years back by the discovery of the oldest impact crater yet at 3 billion years old.
A research team just recently finished up counting, outlining and cataloging the 635,000 impact craters on Mars that are roughly a half-mile in diameter.
Researchers are reporting in the journal Nature that tiny "spherules" embedded in layers of rock have given them details about Earth's asteroid impacts.
POTTSVILLE, Pa., July 29, 2011 /PRNewswire-USNewswire/ -- The Department of Environmental Protection today approved a 50-foot, next-level excavation that will allow New Hope Crushed Stone & Lime to excavate limestone to a depth of 170 feet below sea level at its Bucks County quarry. The quarry, which has been in operation since the 1930s, has already been permitted to mine limestone to 200 feet below mean sea level, but approval must be granted at each 50-foot increment to continue to the...
BLOOMINGTON, Ill., March 28, 2011 /PRNewswire/ -- Winter brings a number of driving hazards, but one of the most dreaded is the pothole. An encounter with one can leave damaged tires, wheels and suspension components in its wake.
BETHESDA, Md., Feb. 28, 2011 /PRNewswire-USNewswire/ - As we leave behind the worst winter in recent memory, there are many reminders left in the form of potholes. Drivers know immediately when they hit a pothole, but what they don't know is if their vehicle has been damaged in the process.
AURORA, Ill., Feb. 10, 2011 /PRNewswire/ -- When winter's snow and ice finally melt away, they invariably leave behind an unpleasant reminder of this winter's severe storm season--potholes.
Crater -- A crater is a circular depression on the surface of a planet, moon, asteroid, or other celestial body. Craters are typically caused by meteorite impacts, although some are caused by volcanic activity. In the center of craters on Earth a crater lake often accumulates, and in craters formed by meteorites a central island (caused by rebounding crustal rock after the impact) is usually a prominent feature in the lake. Ancient craters whose relief has disappeared leaving only a...
- A volcanic mudflow.