Antarctica (HDW) June 25,
2004 - Software on a NASA spacecraft recently made a scientific
observation on its own without human interaction. The Space Technology
6 Autonomous Sciencecraft Experiment captured images of Antarctica's Mount
Erebus and detected volcanic activity.
The software, developed by NASA's Jet Propulsion Laboratory, Pasadena,
Calif., controls the Earth Observing-1 spacecraft. NASA's Goddard Space
Flight Center, Greenbelt, Md, manages the satellite. The software examines
pictures from the Hyperion spectrometer, an instrument highly sensitive
to heat released from molten lava.
After taking an image of Erebus, the software detected heat from the lava
lake at the summit of the volcano and reprogrammed the camera to take
more pictures. News of the detection was rapidly transmitted to scientists.
Typically, it could take months to learn a remote volcano was active and
scientists normally would need to take measurements at the volcano to
detect the same type of event. Researchers at JPL and Goddard will test
the Autonomous Sciencecraft Experiment on Erebus and other volcanoes for
the next several months.
"Autonomous Sciencecraft is a giant leap toward a thinking spacecraft,"
said Dr. Steve Chien, JPL senior technologist for the software. "The
software is the first use of autonomy allowing the spacecraft to make
decisions without waiting for commands from scientists. It can capture
short-lived science events that otherwise would have been missed."
"With this software we can monitor many more volcanoes, since it
knows how to only look at the active sites," said Dr. Ashley Davies,
JPL lead scientist for the experiment.
"This software can be used to track natural disasters that pose danger
to populated areas, such as flooding and fires," said Rob Sherwood,
JPL experiment manager. Future versions of the software also may be used
to track dust storms on Mars, search for ice volcanoes on Europa, and
track activity on Jupiter's volcanically active moon Io.
NASA's New Millennium Program developed both the satellite and the software.
The Program is responsible for testing new technologies in space
