Astronomers find first ever gamma ray clock

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Map of the gamma ray sky in the region of LS5039. The green star shows the position of LS5039 as measured using radio telescopes and the white ellipse shows the gamma ray position. Credit: PPARC
Map of the gamma ray sky in the region of LS5039. The green star shows the position of LS5039 as measured using radio telescopes and the white ellipse shows the gamma ray position. Credit: PPARC

Astronomers using the H.E.S.S. telescopes have discovered the first ever modulated signal from space in Very High Energy Gamma Rays – the most energetic such signal ever observed.


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