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Mars, Like Earth, Sculpted by Super Eruptions and Epic Floods

Thursday, March 28, 2002

Kenneth Tanaka, an astrogeologist at USGS in Flagstaff, Arizona, led a research team that spotted parts missing from the rim of a giant basin on Mars. The scientists think the material was stripped away when nearby volcanoes erupted, releasing surges of carbon dioxide and perhaps water. As lava welled up from below, it pressurized the carbon dioxide, creating a situation akin to a shaken soda, Tanaka told USGS researchers Jeffrey Kargel, David MacKinnon, and Trent Hare also worked on the study, as did Nick Hoffman from the University of Melbourne in Australia. The researchers used topography data provided by the Mars Orbiter Laser Altimeter aboard NASA's Mars Global Surveyor.

More: - Mars, Like Earth, Sculpted by Super Eruptions and Epic Floods

Link: USGS Astro - Mars Global Surveyor, status reports, news, and more about this science mapping mission

Scientist Dave Roddy

Thursday, March 21, 2002

U.S. Geological Survey, Astrogeology Team Emeritus David John Roddy passed at 9:40 in the morning, March 21 at St. Louis hospital while on a short trip. He had gone into the hospital complaining of chest pains and ruptured an aorta while undergoing a heart scan. He died immediately.

More: USGS Astro - Dave Roddy's Biography

Columbia Crew on Hubble Space Telescope servicing mission

Tuesday, March 5, 2002

Columbia astronauts went on the first of first of five space walks early Sunday morning to perform a series of upgrades and repairs, including replacing the telescopes solar arrays...

More: NASA - STS-109 Columbia HST Mission -- includes link to NASA TV mission coverage... watch the action unfold as it happens!

More: NASA Human Spaceflight - Space Shuttle

Long Distance Call to Pioneer 10 on its 30th Anniversary

Monday, March 4, 2002

It took a little extra effort, but NASA this weekend bridged a nearly seven-and-a-half billion mile span to make contact with Pioneer 10, a plucky space probe that first left Earth's gravitational pull more than 30 years ago...

More: NASA - An early NASA Pioneer still on the job in deep space

Mars Odyssey Reveals Mars Ice

Saturday, March 2, 2002

Vast regions of Mars abound in water, mixed as ice with the dirt, dust and rock that form the top 3 feet of the planet's surface, initial data from the mission suggests. The camera system on the Mars 2001 Odyssey sent its first detailed pictures from the Mars orbit last week. NASA released the images to the public during a press conference on Friday, March 1...

More: Arizona Daily Sun - Flagstaff Team Ecstatic About Images

More: Arizona Daily Sun - Odyssey Reveals Mars Ice

Link: ASU 2001 Mars Odyssey THEMIS - latest images, mission news, and info about the Thermal Emission Imaging System

Link: NASA/JPL 2001 Mars Odyssey - status reports, news, and more about this science mapping mission