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
|
|
|
|
news links
|
|
Saturday, September 5
Gilat Announces $100 Million Five-Year Convertible Notes at 60% Conversion Premium
Gilat Satellite Networks — 11:15 am ET (1515 GMT) 6U-Class Earth Observation Satellite ONGLAISAT, Co-Developed by ArkEdge Space, Wins Small Satellite Mission of the Year Award –First mission involving a Japanese company and university to receive the award–
ArkEdge Space — 11:15 am ET (1515 GMT) Datacentrex Invests $30 Million in Eagle LNG Partners, a Supplier of Fuel for the U.S. Space Launch Industry
Datacentrex — 11:14 am ET (1514 GMT) HawkEye 360 Confirms Early Lock-up Release for September 2nd; Preliminary Inclusion in Russell 2000
HawkEye 360 — 11:13 am ET (1513 GMT) America’s AI Lead Won’t Win The Next Space Race
Forbes.com — 11:11 am ET (1511 GMT) |
