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Space technology

Feb 28, 2017

ISRO hit a century of sorts with its launch of 104 satellites in one go. This has been a world record and everyone is proud of ISRO for what it has achieved. Have you wondered what enabled this scientific and technological achievement? Much of the ground work happened at Indian Institute of Science in primarily three scientific and engineering departments - aerospace, materials and electrical communication engineering. Aerospace Engineering helped in building and launching the satellites. Materials Engineering, then Metallurgy helped in arriving at the right composites, alloys and materials for the outer cover for launch vehicles and satellites that helped them to weather extreme conditions. The Electrical Communication Engineering Department helped with the technology to control and communicate with the satellites. It is interesting to note that all three were established during 1940s and before India became independent in 1947. In many ways from the science and technology to building capacity, IISc has been playing a key role. 

General, Science, Society, Featured
Feb 23, 2017

When the European Space Agency (ESA) released a catalogue containing precise positions and brightnesses of 1142 million stars of the Milky Way on September 14, 2016, it was a treasure trove of information for astronomers. Gaia, a space-based telescope launched on December 19, 2013 by the ESA, is on its mission to study the evolution of our galaxy.  As of today, it is observing approximately one billion celestial bodies including stars, planets, comets, asteroids and quasars in the Milky Way, building the most accurate three-dimensional map of our galaxy we have till now. A billion celestial bodies make just one percent of our galaxy’s population – a scale unimaginable by most of us. Nevertheless,  the tremendous data generated by Gaia will be used for determining the positions and motions of stars (astrometry), measuring the colours of the stars (photometry) and measuring the radial velocity (spectroscopy) and studying the constituents of stars.

 

General, Science, Featured
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