XMM-Newton observatory has helped scientists to discover how the Universe`s first stars ended their lives in giant explosions from the recent detection of a gamma-ray burst from a massive blue supergiant.
An international team of astronomers led by Lars Fuhrmann from the Max Planck Institute for Radio Astronomy in Bonn, Germany, used some of the best single-dish radio telescopes for several years, in combination with NASA`s Fermi Gamma-ray Space Telescope, to study the place where high energy outbursts occur.
New observations of the blazar known as PKS 1424+240 showed that it is the most distant known source of very-high-energy gamma rays, but its emission spectrum now appears highly unusual in light of the new data.
Ahead of the Copenhagen Summit
on climate change, India today said the meeting should make
all efforts to come out with a "legally binding substantive"
outcome on tackling the pressing global challenge.