November 8th, 2001

Volcanoes still active on Mars? New evidence for ongoing volcanism and water release EurekAlert!

In their search for water and possible life on Mars, scientists are turning to new data generated by the Mars Orbiter Camera (MOC) images and Mars Orbiter Laser Altimeter (MOLA) topography from the Mars Global Surveyor (MGS) spacecraft. The Elysium and Amazonis Planitia regions of Mars have come under particularly intensive study because of their recently proposed young ages (10-100 million years ago or less). Several different recent studies have respectively shown that: some of the volcanic flows were likely emplaced over ice-rich ground; at least one flow originated from the long rift-type vents of the Cerberus Fossae; and recent floods also originated from the vent system, perhaps depositing water in the shallow subsurface for later volcanic flows to interact with. But the capstone of this work is the discovery by NASA/Goddard Earth Science and Technology Center scientist Susan Sakimoto and colleagues that the new data reveals regionally extensive lava eruptions from the same vent system as the water. While earlier data hints at this conclusion, Sakimoto’s evidence provides the strongest support yet that these volcanic and hydrologic events indeed are both young and related in origins, and could perhaps still occur on Mars in the future.

April 4th, 2001

Martian homes EurekAlert!

IF ASTRONAUTS ever make it to Mars, they’ll need a roof over their heads. Bricks are too heavy to lug all the way from Earth, but with just a few bucket-loads of polyethylene powder, they could rustle them up when they get there. “In a couple of decades or so, humans may be going to Mars,” says Richard Kiefer of the College of William and Mary in Williamsburg, Virginia. “But you’re likely to be there for a long time, so you’re going to need a habitat.”

April 2nd, 2001

Simple control strategy derived for solar-sail spacecraft EurekAlert!

This year

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