spacetoday.net: space news from around the web

Explore Mars event
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
Ariane launches fifth and final ATV spacecraft
Posted: Wed, Jul 30 7:48 AM ET (1148 GMT)

Delta 4 launches space surveillance satellites
Posted: Tue, Jul 29 5:07 AM ET (0907 GMT)

news links
Thursday, July 31
‘CanJam’ joint to fly on Virgin Galactic flight
Univ. at Buffalo Reporter — 7:34 am ET (1134 GMT)
Mars rover sets record after logging more than 25 miles
Cornell Univ. — 7:34 am ET (1134 GMT)
Breaks the Glass Ceiling, "Sally Ride: America's First Woman in Space"
Washington (MO) Missourian — 7:33 am ET (1133 GMT)
Astronomers Unravel Secrets of Weirdly Tilted Solar Systems
National Geographic News — 7:32 am ET (1132 GMT)


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