The Dynamic Albedo of Neutrons (DAN) is an active/passive neutron spectrometer that measures the abundance and depth distribution of H- and OH-bearing materials

(e g , adsorbed water, hydrated minerals) in a shallow layer (-1 m) of Mars’ subsurface along the path of the MSL rover.
(E) The results are sent to Earth through antennas on the rover deck. Return commands tell the rover where it should drive next.
and analysis of Gale Crater will tell us much about the possibility of life on Mars as well as the past and future possibilities for our own planet.” Next stop for the rover will be Glenelg, 400m to the east, and it is traveling towards there after having its first self propelled (it is powered by nuclear reactors based on plutonium oxide) engine started to work. Presently, after the intial acclimatization now it is travelling at the rate of 16-20 meters per day. Glenelg which appears to be the intersection of three distinct geological regions – potentially rich pickings for the rover’s suite of tools-makes it specially interesting for scientist.
It will then set off for the base of Mount Sharp in a journey that will take several months.
What does Rover intends to do while Roving on Mar­tian Soil in short term :
(A) Curiosity will trundle around its landing site looking for interesting rock features to study. Its top speed is about 4cm/s.
(B) This mission has 17 cameras. They will identify particular targets, and a laser will zap those rocks to probe their chemistry.
(C) If the signal is significant, Curiosity will swing over instruments on its arm for close-up investigation. These include a microscope.
(D) Samples drilled from rock, or scooped from the soil, can be delivered to two hi-tech analysis labs inside the rover body.
Extraterrestrial life
As the latest rover arrives on Mars to assess its hos­pitality, astronomers are learning about possibly habitable worlds beyond the solar system.
If Martians exist, then any in the vicinity of Gale Crater on the Martian equator were in for a treat as they had some alien (for them we are alien) visitors in the name of Curiosity.
Thirty-six years after the arrival of America’s Viking landers, which were designed to see if the Martian regolith hosted alien microbes, astronomers are still unsure if the Planet has ever been habitable. The consensus is that Vi­king found nothing. And Mars is certainly an inhospitable place; temperatures can fall below -100°C, far below those in Antarctica, and an extremely thin atmosphere does little to dampen the solar radiation that bombards a surface as . dry as any earthly desert. Now, the scientific community are keeping their fingers crossed at even a remote possibility of finding Martian brethrer. But that could only be (if and that is big if) microscopic in size.
As we come to the end of this write-up still there are a lot curious facts that Curiosity will settle in the months to follow. May be we have to do another ABCD of Mars when the rover will “redefine” the whole place
called Mars


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