News tagged with subatomic particles

XENON100 sets record limits for dark matter

Scientists from the XENON collaboration announced a new result from their search for dark matter. The analysis of data taken with the XENON100 detector during 13 months of operation at the Gran Sasso Laboratory (Italy) provided ...

Jul 20, 2012
4.9 / 5 (15) 6

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 ...

Apr 22, 2013
4.6 / 5 (16) 19

'Big crunch' or another 'Big Bang?'

Will the universe expand outward for all of eternity and end in a vast, dark, cold, sterile, diffuse nothingness? Or will the “Big Bang” — the gargantuan explosion that formed the universe 14 billion ...

Aug 16, 2009
3.7 / 5 (18) 77

Particle physics -- why does it matter?

Scientists reported yesterday the discovery of a particle that is very likely the Higgs boson, a subatomic particle that gives other particles mass—and makes life possible. Theorized in the 1960s and ...

Jul 05, 2012
4.3 / 5 (15) 27

Fermi shows that Tycho's star shines in gamma rays

(PhysOrg.com) -- In early November 1572, observers on Earth witnessed the appearance of a "new star" in the constellation Cassiopeia, an event now recognized as the brightest naked-eye supernova in more than ...

Dec 13, 2011
4.9 / 5 (11) 6