Latest Guest Blog Posts
Posted by Charlene Anderson on 2011/11/18 05:04 CST
NASA's Budget for 2012 Is Set--Worry About 2013 Budget Begins
Posted by Ray Sanders on 2011/11/18 10:34 CST
Guest Post: Ray Sanders: What's Up in the Winter Sky
Posted by Charlene Anderson on 2011/11/15 04:03 CST
NASA On Verge of Getting a Budget -- Congress Will Vote This Week
Posted by Charlene Anderson on 2011/11/15 11:58 CST
Planetary Society statement entered into testimony for House hearing on future of planetary science
Posted by Charlene Anderson on 2011/11/11 04:08 CST
U.S. House of Representatives Hearing Next Week; Show Up to Show Your Support for Space Exploration
Posted by Marc Rayman on 2011/11/03 01:48 CDT
Dawn Journal: HAMO successfully completed, LAMO ahead
Posted by Jason Davis on 2011/11/02 04:20 CDT
The Chinese spacecraft Shenzhou 8 docks with space station Tiangong 1, on the same day a Progress resupply capsule arrives at the International Space Station.
Posted by A.J.S. Rayl on 2011/10/31 11:24 CDT
Opportunity roved on this month, driving alongside the rim of Endeavour Crater toward the northern end of Cape York in search of more science gold and a place to hunker down for winter.
Posted by Jim Shirley on 2011/10/25 12:00 CDT
A daily cycle of cloud formation in the Martian tropics during northern summer is driven largely by solar radiation and the associated solar thermal tide. Models predict a striking pattern of cloud formation above the high altitude volcanoes of the Tharsis region. At mid-day, the atmosphere is typically free of clouds due to elevated temperatures. Beginning in the early evening hours, atmospheric cooling at altitudes above 20 kilometers begins to foster water ice cloud formation. During the night, the altitude of cloud formation descends closer to the surface.