Many comets from other solar systems
Posted: Fri, Jun 11, 2010, 7:14 AM ET (1114 GMT)
The vast majority of comets in our solar system actually formed around other stars and were later captured by the Sun, scientists reported Thursday. Computer simulations show that more than 90 percent of the comets in the Oort Cloud, a spherical shell of icy bodies far from the Sun, likely originated from other stars, according to new computer simulations. The Sun formed in cluster of other stars also filled with icy objects; when the cluster dispersed the Sun captured many of these objects. The models explain why the Oort Cloud contains more objects than would be expected if all the objects formed around the Sun.
The vast majority of comets in our solar system actually formed around other stars and were later captured by the Sun, scientists reported Thursday. Computer simulations show that more than 90 percent of the comets in the Oort Cloud, a spherical shell of icy bodies far from the Sun, likely originated from other stars, according to new computer simulations. The Sun formed in cluster of other stars also filled with icy objects; when the cluster dispersed the Sun captured many of these objects. The models explain why the Oort Cloud contains more objects than would be expected if all the objects formed around the Sun.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
SES sees shift in revenue from video to government services
Posted: Sun, Aug 3 12:05 PM ET (1605 GMT) SpaceX launches Starlink satellites and classified payloads
Posted: Sun, Aug 3 12:03 PM ET (1603 GMT) |
|
news links
|
|
Friday, August 8
Texas-based Firefly Aerospace makes Nasdaq debut
Houston Chronicle — 6:53 am ET (1053 GMT) Austin’s Firefly Aerospace rings Nasdaq opening bell, marking official IPO launch
KXAN-TV — 6:53 am ET (1053 GMT) Rocket Lab, Kratos Misfire; But Firefly Aerospace Soars In Debut
Investor's Business Daily — 6:53 am ET (1053 GMT) Space Company Firefly’s Stock Zooms in Wall Street Debut
Wall Street Journal — 6:52 am ET (1052 GMT) Austin-area's Firefly Aerospace soars in public trading debut
Austin (TX) American-Statesman — 6:51 am ET (1051 GMT) |
