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

AD: H2M 2015

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
Soyuz launches Galileo navigation satellites
Posted: Sat, Mar 28 6:55 AM ET (1055 GMT)

New crew arrives at ISS
Posted: Sat, Mar 28 6:45 AM ET (1045 GMT)

Japan launches reconnaissance satellite
Posted: Fri, Mar 27 2:10 PM ET (1810 GMT)

news links
Sunday, March 29
Inmarsat woos Facebook
Sunday Times of London — 9:09 am ET (1309 GMT)
Astronaut twin Scott Kelly begins #YearInSpace: Why that long?
Christian Science Monitor — 9:03 am ET (1303 GMT)
ISRO launches fourth navigation satellite
The Hindu — 9:00 am ET (1300 GMT)


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