• Scientists from 9 countries in Europe and Asia including researchers from Aryabhatta Research Institute of Observational Sciences(ARIES), Nainital, observed the changes in a very high energy gamma-ray emitting blazar '1ES 0806+524' using seven optical telescopes in Europe and Asia.

What is a blazar?

• A blazaris a feeding super-massive black-hole (SMBH) in the heart of a distant galaxy that produces a high-energy jet viewed face-on from Earth.
• Blazars are one of the most luminous and energetic objects in the known universe with a jet composed of ionized matter travelling at nearly the speed of light directed very nearly towards an observer.