Latest MARSIS Stories
Two Mars orbiter missions will open new vistas in the exploration of Mars through the use of sophisticated ground-penetrating radars, providing the first direct clues about the Red Planet's subsurface structure.
University of Iowa Space Physicist Don Gurnett and his UI colleagues report that a scientific instrument aboard the European Space Agency's (ESA) Mars Express spacecraft is working perfectly and that its data have so far revealed that Mars' ionosphere -- part of the upper atmosphere -- is very lumpy and complex, and that the instrument can "see" hidden craters and thick layers of ice beneath the planet's surface.
For the first time in the history of planetary exploration, the MARSIS radar on board ESA's Mars Express has provided direct information about the deep subsurface of Mars.
The Mars Express radar, MARSIS, has now been deployed for more than four months. Here we report on the activities so far.
ESAâ€™s Mars Express mission has been extended by one Martian year, or about 23 months, from the beginning of December 2005. The decision, taken on September 19 by ESAâ€™s Science Programme Committee, allows the spacecraft orbiting the Red Planet to continue building on the legacy of its own scientific success.
ESA has started a technical investigation into the Planetary Fourier Spectrometer (PFS) on board Mars Express, after a problem developed in the instrument a few months ago.
MARSIS, the sounding radar on board ESAâ€™s Mars Express spacecraft, is collecting the first data about the surface and the ionosphere of Mars.
MARSIS, the Mars Advanced Radar for Subsurface and Ionosphere Sounding onboard ESA's Mars Express orbiter, is now fully deployed, has undergone its first checkout and is ready to start operations around the Red Planet. With this radar, the Mars Express orbiter at last has its full complement of instruments available to probe the planet's atmosphere, surface and subsurface structure.
MARSIS, the Mars Advanced Radar for Subsurface and Ionosphere Sounding on board ESAâ€™s Mars Express orbiter, is now fully deployed, has undergone its first check-out and is ready to start operations around the Red Planet.
The second 20-metre antenna boom of the MARSIS instrument on board Mars Express was successfully â€“ and smoothly â€“ deployed, confirmed today by the ground team at ESAâ€™s European Space Operations Centre.
- A small wooded valley; a dell.
- The protecting weather-shed built around the entrance to a house.
- The roofed-over space between the kitchen and the sleeping-quarters in a logging-camp, commonly used as a storeroom.