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Observatory sheds light on last acts of first stars

Observatory sheds light on last acts of first stars

Last Updated: Saturday, July 12, 2014, 11:40

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.

`Violent` gamma-ray outbursts near supermassive black holes

Last Updated: Saturday, May 24, 2014, 19:08

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.

Black hole`s birth kills `exploding` radio star

Last Updated: Sunday, December 22, 2013, 12:02

Astronomers have found a new population of exploding stars that "switch off" their radio transmissions before collapsing into a Black Hole.

Sun`s lost its head, pilots and high flyers beware

Last Updated: Friday, July 05, 2013, 10:22

Air passengers, beware. Your health and that of the crew is at stake.

Most distant blazar may hold new mystery

Last Updated: Friday, April 19, 2013, 14:28

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.

Gamma rays from the center of Milky Way could be evidence of dark matter

Last Updated: Tuesday, August 14, 2012, 17:47

Gamma-ray photons seen emanating from the center of the Milky Way galaxy could support the theory that dark matter exists at the center of galaxies, according to UC Irvine astrophysicists.

Largest ever Cherenkov telescope sees first light on 26th July

Last Updated: Friday, July 27, 2012, 12:34

H.E.S.S. II, the largest Cherenkov telescope ever built, started its operation in Namibia on 26 July 2012.

`Gigantic gamma-rays blasted from Milky Way’s core`

Last Updated: Wednesday, May 30, 2012, 19:30

New evidence of ghostly gamma-ray beams suggests that the Milky Way’s central black hole was much more active in the past.

Brighter than Sun gamma rays created

Last Updated: Wednesday, September 21, 2011, 15:36

The brightest gamma ray beam ever created - more than a thousand billion times more brilliant than the Sun - has been produced.

NASA telescope detects gamma-rays from microquasar

Last Updated: Friday, November 27, 2009, 14:42

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.