News tagged with cosmic ray particles

Graphene mini-lab

A team of physicists from Europe and South Africa showed that electrons moving randomly in graphene can mimic the dynamics of particles such as cosmic rays, despite travelling at a fraction of their speed, in a paper about ...

Oct 31, 2012
3.7 / 5 (3) 0

PhD researcher seeks origin of cosmic rays

As cosmic ray particles penetrate our atmosphere, they collide with air molecules and produce new high-energy particles. These particles, in turn, are involved in further collisions. The whole process is ...

Oct 23, 2012
5 / 5 (1) 0

New type of cosmic ray discovered after 100 years

(Phys.org)—Using the European X-ray astronomy satellite XMM-Newton, researchers from CNRS and CEA have discovered a new source of cosmic rays. In the vicinity of the remarkable Arches cluster, near the ...

Oct 16, 2012
3.7 / 5 (11) 8 | with audio podcast

Voyager 1 may have left the solar system

While there's no official word from NASA on this, the buzz around the blogosphere is that Voyager 1 has left the Solar System. The evidence comes from this graph, above, which shows the number of particles, ...

Oct 09, 2012
4.9 / 5 (40) 19 | with audio podcast

Neutrinos put cosmic ray theory on ice

(Phys.org) -- A telescope buried beneath the South Pole has failed to find any neutrinos accompanying exploding fireballs in space, undermining a leading theory of how cosmic rays are born.

Apr 20, 2012
4.5 / 5 (4) 11 | with audio podcast