Electronic Resource
[s.l.]
:
Nature Publishing Group
Nature
440 (2006), S. 1002-1003
ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] On page 1018 of this issue, Aharonian et al. report the detection of copious high-energy γ-ray emission from two ‘blazars’ — a class of active galaxy — around 2 billion light years from Earth. This observation indicates that such radiation can travel largely unimpeded through the ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/4401002a
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