Exploding stars help to understand thunderclouds on Earth

How is lightning initiated in thunderclouds? This is difficult to answer - how do you measure electric fields inside large, dangerously charged clouds? It was discovered, more or less by coincidence, that cosmic rays provide ...

New data shows cosmic rays are more complex than expected

During the American Physical Society's 2015 April Meeting, to be held April 11-14 in Baltimore, Maryland, Eun Joo Ahn from Fermilab will present data from the most extensive study yet on the composition of cosmic rays—an ...

Next solar maximum may be safest time for manned missions to Mars

Humans have long dreamed of traveling to Mars, and several nations and private organizations are developing plans for crewed Mars missions in the coming decades. But a recent study looking at the risks for astronauts going ...

X-ray telescopes find black hole may be a neutrino factory

(Phys.org) —The giant black hole at the center of the Milky Way may be producing mysterious particles called neutrinos. If confirmed, this would be the first time that scientists have traced neutrinos back to a black hole.

Electric sparks may alter evolution of lunar soil

The moon appears to be a tranquil place, but modeling done by University of New Hampshire and NASA scientists suggests that, over the eons, periodic storms of solar energetic particles may have significantly altered the properties ...

First H.E.S.S. II data reveal promising pulsar signal

Following the intensive commissioning phase of the largest Cherenkov telescope worldwide (H.E.S.S. CT5), the H.E.S.S. collaboration has announced the detection of cosmic gamma rays of 30 gigaelectronvolts (GeV). The High ...

CLOUD sees through the haze

The CLOUD (Cosmic Leaving OUtdoor Droplets) experiment at CERN, which is studying whether cosmic rays have a climatically significant effect on aerosols and clouds, is also tackling one of the most challenging problems in ...

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