One of several satellites orbiting Mars has discovered seven spots much darker than their surroundings, but is not a meteorite impact craters. As a result, researchers believe that these could be entrances to underground caves.The functions, which vary in size, 330-820 m wide, were photographed by the Mars Odyssey Thermal Emission Imaging System (THEMIS), and got a common name, The seven sisters, and individual names: Dena, Chloe, Wendy, Annie, Abbey, Nikki and Jeanne after the family of the discovery team. They are located near Arisa Mons, a huge volcano nearly one mil wide, which is part of the Tharsis region of northern March hemisphere.Glenn Cushing of Northern Arizona University in Flagstaff, the first person to discover the features, think Martian caves, if they are there , could become the first human habitats on the Red Planet. They would provide excellent protection against the elements for future manned scientific missions because minimal construction would be required. The surface of Mars is often plagued by sand storms that cover huge amounts territory.Scientists here on Earth is involved in something called the Earth-Mars Cave Detection program of THEMIS ‘infrared and video technologies. To test the unit, they took the thermal “signatures” of known caves in Arizona and New Mexico using a device called a Quantum Well Infrared photodetector (QWIP), mounted in an airplane, and took comparative readings with a handheld infrared camera on the ground. After flybys were QWIP readings matched perfectly with the handheld devices, showing that the caves can be detected thermally from an aerial source.Further tests will be conducted in the soil areas somewhat similar circumstances that may arise on Mars. These will include California’s Mojave desert, the Atacama in Chile, and scenes of extreme cold, like Iceland and Antarctica. Cave detection from space is due to differences in temperatures temperatures.Cave remain fairly constant, since they are not exposed to elements of weather. Surfaces around the cave openings do not vary in temperature due to sun up and down. When you take thermal readings, in principle, on the night in a cave entrance to see a warmer place than its surrounding area, and today it is the opposite, and the cave is cooler than the surrounding properties. This process will apply to Odyssey instrumentation to monitor the Seven Sisters is really openings.Spelunking cave or cave exploration, has a lot of excitement and promise for scientists studying Mars. In the near future, NASA plans to send robot craft to various places on earth to gather information about the caves before humans land there. The snag is that it may be impossible for audiovisual signals sent out because of the cave walls, as a way to get around that problem would be to send a group of infrared equipped microwave bots in caves. A robot ship would come into the cave to a specific location, stop and stay there while others go further and stop themselves from time to time so that the longest one was apt to send their information back to the previous unit, which would relay it to the Next Previous crafts, and so on until the signal reaches the vehicle waiting outside the cave, which could then beam the information back Earthside.Underground caverns can be a boon for extraterrestrial research. Speculation is high that since they are unaffected by the relatively harsh atmosphere of Mars, caves might have been a considerable amount of water and perhaps primitive life forms, even if only lichen and fungi. Maybe we will see a scene like the 1964 movie “Robinson Crusoe On Mars”, where an astronaut stranded on Mars find enough water in a system of caves in March in order to survive.