Astronomers using the HESS telescopes have discovered a new source of high-energy gamma rays. Dubbed a superbubble, it appears to be a massive shell of gas and dust 270 light-years in diameter being blown outward by the radiation from multiple stars and supernovas. HESS also discovered two other gamma-ray sources, each a giant of its […]

A gamma ray telescope is set to come up at Hanle, Ladakh, in 2015 and start operations in 2016. Hanle was one of the sites proposed to install a part of the Cherenkov Telescope Array, too. A survey conducted in the 1980s and 90s threw up Hanle as a suitable site to host telescopes because […]

I wrote a shortened version of this piece for The Hindu on July 4, 2013. This is the longer version, with some more details thrown in. — Scientists and engineers from 27 countries including India are pitching for a next-generation gamma-ray telescope that could transform the future of high-energy astrophysics. Called the Cherenkov Telescope Array […]