Study: fewer asteroids hit Earth's surface
Posted: Sun, Jul 20, 2003, 12:57 PM ET (1657 GMT)
Fewer large asteroids will strike the surface of the Earth than previously thought because they will instead break up in the atmosphere, according to a new study. In a paper published in the latest issue of the journal Nature, English and Russian scientists reported on a new computer model that drastically reduces the number of large asteroids that would strike the surface. According to their model, asteroids 200 meters in diameter and larger strike the surface once every 160,000 years, rather than once every 2,500 years that previous studies have concluded. The difference is that a far larger number of asteroids break up in the Earth's atmosphere; these still would have destructive effects, but would not generate effects like tsunamis.
Fewer large asteroids will strike the surface of the Earth than previously thought because they will instead break up in the atmosphere, according to a new study. In a paper published in the latest issue of the journal Nature, English and Russian scientists reported on a new computer model that drastically reduces the number of large asteroids that would strike the surface. According to their model, asteroids 200 meters in diameter and larger strike the surface once every 160,000 years, rather than once every 2,500 years that previous studies have concluded. The difference is that a far larger number of asteroids break up in the Earth's atmosphere; these still would have destructive effects, but would not generate effects like tsunamis.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
Virgin Galactic slightly delays resumption of commercial flights
Posted: Sat, Aug 9 11:05 AM ET (1505 GMT) |
|
news links
|
|
Friday, August 15
USAID Criticized Over Lack of Oversight on Starlink Terminals Supplied to Ukraine
United24 Media — 7:59 am ET (1159 GMT) In Colorado Springs, KBR employees help map global satellite traffic for Space Force
Colorado Springs Gazette — 7:58 am ET (1158 GMT) Blue Origin Pushes Back New Glenn Flight 2 Launch Window
Aviation Week — 7:57 am ET (1157 GMT) Spaceport America loses some lift following Virgin Galactic pause
Albuquerque Journal — 7:56 am ET (1156 GMT) SpaceX redesigns Starship to get Mars-bound rocket to stop exploding
The Independent — 7:55 am ET (1155 GMT) |
