News tagged with cosmic acceleration

Galactic knee and extragalactic ankle

It is obvious from the data of the KASCADE-Grande experiment at the Karlsruhe Institute of Technology (KIT) that the so-called "knee" of the cosmic rays, a bend in the energy spectrum at high energies, is ...

dateMay 09, 2013 in Astronomy
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Supernovae and the origin of cosmic rays

(Phys.org) —In the spring of the year 1006, one thousand and seven years ago this April, observers in China, Egypt, Iraq, Japan, Switzerland (and perhaps North America) reported seeing what might be the ...

dateApr 22, 2013 in Astronomy
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Dark energy is real, say astronomers

(Phys.org)—Dark energy, a mysterious substance thought to be speeding up the expansion of the Universe is really there, according to a team of astronomers at the University of Portsmouth and LMU University ...

dateSep 12, 2012 in Astronomy
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