spacetoday.net: space news from around the webin association with SpaceNews

Climate change may worsen orbital debris problem
Posted: Tue, Nov 13, 2012, 12:56 PM ET (1756 GMT)
Increasing amounts of carbon dioxide in the upper atmosphere may be exacerbating the growing problem of orbital debris, scientists reported this week. Researchers with the Naval Research Laboratory and two universities said that the increasing concentrations of carbon dioxide created by human activities helps cool the upper levels of the atmosphere, the reverse of what carbon dioxide does in the lower atmosphere. That cooling works to contract the thermosphere, reducing the atmospheric drag on debris in low Earth orbit and thus extending it they can remain in orbit. The scientists made those conclusions based on data from an atmospheric chemistry experiment on Canada's SCISAT-1 spacecraft.
<<previous article   next article>>
news in brief
Russian cosmonauts speed through EVA
Posted: Thu, Oct 23 6:02 AM ET (1002 GMT)

Proton launches Russian communications satellite
Posted: Wed, Oct 22 8:04 AM ET (1204 GMT)

Mars spacecraft survive comet flyby
Posted: Wed, Oct 22 7:53 AM ET (1153 GMT)

news links
Friday, October 24
Elon Musk: Mars needs men and women
San Jose Business Journal — 8:00 pm ET (0000 GMT)
Chinese moon rocket takes private satellite along
Deutsche Welle — 7:59 pm ET (2359 GMT)
China's steady march to moon a lesson for West
Deutsche Welle — 7:58 pm ET (2358 GMT)


about spacetoday.net   ·   info@spacetoday.net   ·   mailing list