Latest Impact event Stories
A 17-member team has found what may be the smoking gun of a much-debated proposal that a cosmic impact about 12,900 years ago ripped through North America and drove multiple species into extinction.
The enduringly popular theory that the Chicxulub crater holds the clue to the demise of the dinosaurs, along with some 65 percent of all species 65 million years ago, is challenged in a new paper published Monday.
The European Space Agency says scientists are getting ready for an international meeting to discuss preparations for a near-Earth flyby of asteroid Apophis. The first International Academy of Astronautics Planetary Defense Conference will be held in Granada, Spain, next week.
For the first time in history, scientists have matched a meteorite on Earth with a specific asteroid, providing insight into how the planets were formed and how to best avoid a potential asteroid catastrophe sometime in the future.
Italian astronomer Andrea Boattini discovered six comets in 2008 while tracking cosmic debris throughout the solar system at Mount Lemmon Observatory in Arizona.
The University of Arizona's Catalina Sky Survey has been awarded a $3.16 million NASA grant to continue its search for near-Earth objects, or NEOs, through 2012.Under the direction of Stephen M. Larson of the UA's Lunar and Planetary Laboratory, the survey, known as CSS, has discovered about 70 percent of all NEOs found in past three years. CSS tallied 565 NEO discoveries in 2008, which broke its record-setting number of 460 NEO discoveries in 2007.Thanks to an additional $250,000 NASA grant,...
Abundant tiny particles of diamond dust exist in sediments dating to 12,900 years ago at six North American sites, adding strong evidence for Earth's impact with a rare swarm of carbon-and-water-rich comets or carbonaceous chondrites, reports a nine-member scientific team.
A group of space experts called the Association of Space Explorers (ASE) have called for a coordinated response to the threat and say missions to stop asteroids will need global approval.
Backyard astronomers watching the Perseid meteor shower last month saw meteoroids hitting not only Earth but also the Moon.
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...
Near-Earth Asteroid -- Near-Earth asteroids (NEAs) are asteroids whose orbit intersects Earth's orbit and which may therefore pose a collision danger, as well as being most easily accessible for spacecraft from Earth. In fact, some near-Earth asteroids can be reached with much less Î”V than the Moon. The most famous near-Earth asteroid is 433 Eros that was visited by NASA's Near Earth Asteroid Rendezvous probe. A few hundred such near-Earth asteroids are known, ranging in size up...
- The act of burning, scorching, or heating to dryness; the state or being thus heated or dried.
- In medicine, cauterization.