What are the findings of Chandrayaan - 1 ?

Chandrayaan-1 has taught us some new things about the Moon. To begin with, instruments on board- Chandrayaan-1 detected that there is water on the Moon. It was also confirmed that solar hydrogen nuclei were being absorbed dust grains on the lunar surface known as lunar regolith.

The Moon acts like a big sponge that absorbs electrically charged particles given out by the Sun. These particles interact with the oxygen present in some dust grains on the lunar surface, to produce water. Water on the Moon is just one of the many crucial Moon findings.

The terrain mapper camera on- board Chandrayaan-1 also sent the images of tracks of the lunar rovers used by astronauts to travel on the surface of the Moon.

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why is India's Mars mission an exciting one?

The Mars Mission will be ISRO's first interplanetary mission and one filled with excitement and challenges. Its success will demonstrate India's technological capability to send a satellite to orbit around Mars, and conduct meaningful experiments, such as looking for signs of life.

The space craft, which alone costs Rs. 150 crore out of the total of Rs. 450 crore estimate expenditure on the space mission, is currently undergoing vibration and acoustic tests, at ISRO's satellite integration and testing establishment.

After leaving Earth's orbit, the spacecraft will cruise in deep space for about ten months, till it reaches the Martian transfer trajectory. One of the important goals of the mission is to find whether there is methane on Mars, for methane is considered an essential chemical for life on Mars.

Rathnavath Ravinaik

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What is the role of the Development and Educational Communication Unit( DECU ) in ISRO ?

The DECU is the Development and Educational Communication Unit of ISRO. Its functions include the planning, implementation, research and evaluation of satellite- based applications for the benefit of society. The major programmes of DECU include tele- medicine, tele- education, and the Gramsat Programme, which includes the training and development of communication channels.

The DECU also supports satcom networks that use satellites positioned in space for voice and data telecommunications. DECU houses state- of the art- programme production equipment and facilities, and produces video programmes related to ISRO, space and science. It is also involved in education, and the creation of awareness through theme- based video programmes, and documentaries.

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Why is Chandrayaan-1 India's pride ?

Chandrayaan - 1 is India's first unmanned lunar probe. It was successfully launched on October 22nd 2008 from the Satish Dhawan Space Centre in Sriharikota. The project was led by Mylswamy Annadurai, the project cheif. The mission included five ISRO payloads, and six payloads from other international space agencies including NASA, ESA, and the Bulgarian Aerospace Agency.

Chandrayaan-1 took five and a half day to reach the Moon. Its journey culminated with a major manoeuvre- the lunar orbit insertion. Once the spacecraft was orbiting the Moon, its altitude was gradually lowered to the final 100 km - high circular orbit.

The spacecraft then ejected the ' Moon Impact Probe' that provided information about the lunar surface. With Chandrayaam- 1, ISRO took a step forward towards manned space missions to the Moon.

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What do we know about ISTRAC ?

ISTRAC is ISRO's telemetry and tracking network. Do you know what telemetry is? It is the science and technology of automatic measurement and transmission of data by wire, radio, or other means wire, radio, or other means from remote sources, ISTRAC is responsible for providing space operation services like spacecraft control. These services are provided for the launch vehicle and low orbitng spacecrafts,as well as for the deep space missions of both ISRO and other space agencies around the world. Over the years, ISRO has established a network of tracking stations to provide the necessary telemetry and tracking support missions in space.

These stations are of international standards, and are located at Bangalore, Lucknow, Sriharikota, Thriuvanathapuram, Port Blair Island, Brunei, Biak and Mauritius. ISTRAC has its headquarters at Bangalore.

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