With the successful Astrosat, a cutting-edge space observatory, the Indian Space Research Organisation (ISRO) has put India among a select group of countries that have an independently designed and operate a space telescope studying celestial objects. As The Hindu reports:
The ability to simultaneously study a wide variety of wavelengths — visible light, ultraviolet and X-ray (both low- and high-energy) bands — has tremendous implications for scientists globally, particularly those in India. Though stars and galaxies emit in multiple wavebands, currently operational satellites have instruments that are capable of observing only a narrow range of wavelength band. Since the Earth’s atmosphere does not allow X-rays and ultraviolet energy from distant cosmic objects to reach ground-based telescopes, space observatories become important to unravel celestial mysteries. With Astrosat, Indian researchers will no longer have to rely on other space agencies for X-ray data, and scientists everywhere need no longer source data from more than one satellite to get a fuller picture of celestial processes. As in the case of Chandrayaan-1 and the Mars Orbiter Mission, Mangalyaan, the Astrosat telescope will have no immediate commercial or societal implications. But the instruments have been carefully chosen to allow scientists to pursue cutting-edge research. Chandrayaan-1 and Mangalyaan returned invaluable information, although they were launched several years after other countries sent satellites to the Moon and Mars. Given the uniqueness of Astrosat, it will enable Indian researchers to work in the frontier areas of high-energy astrophysics.
Moreover, most of the payloads in the satellite come not from ISRO, but from a range of scientific institutions across India and the world (including Indonesia, Canada, and the United States). Astrostat thus reflects the country’s wide breadth of native talent, as well as its capacity to combine and coordinate these vital skills into one platform that can benefit researcher everywhere. Continue reading