The Indian Space Research Organisation (ISRO) is exploring the possibility of developing a next-generation astronomy satellite, an official indicated on Tuesday. ISRO's first mission dedicated for astronomy, AstroSat, launched on September 28, 2015, with its design life of five years, completed six years of its operation on Tuesday.

"It (AstroSat) is expected to last some more years", said AS Kiran Kumar, the then Chairman of ISRO who led the mission team, and is presently serving as the chair of the apex science committee at the space agency. "We can expect some more results, which will be path-breaking", he said.

Asked about the possibility of ISRO launching AstroSat-2, he said: "Not AstroSat-2. Next generation...thinking is going on...depending on how planning happens...follow-on to this (AstroSat) in a different manner are being looked at".

According to ISRO officials, data from AstroSat is widely utilised for the study of various fields of astronomy, from galactic to extra-galactic and from users from all over the world.

The multi-wavelength space observatory, which has five unique X-ray and ultraviolet telescopes working in tandem, had detected extreme-UV light from a galaxy, called AUDFs01, 9.3 billion light-years away from Earth.

The discovery was made by an international team of astronomers led by Dr Kanak Saha at the Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, and reported in 'Nature Astronomy'. This team included scientists from India, Switzerland, France, the USA, Japan, and the Netherlands.

AstroSat has also observed for the very first time rapid variability of high energy (particularly >20keV) X-ray emission from a black hole system, officials noted.

"AstroSat has been a very successful mission and it has produced results which are globally acclaimed...", Kiran Kumar said. "Large number of papers have also got published".