First reported in 1912 by Austrian physicist Victor Hess, cosmic rays were discovered after a series of balloon ascents meant to explore ionizing radiation that was first detected on an electroscope.

"We would like to understand the difference between these systems, which holds the clue to understand just how many cosmic rays are produced in the jets of microquasars." Using 16 years of data ...

These are mainly protons and electrons, which are commonly known as cosmic rays," team co-leader Guillem Martí-Devesa from the Università di Trieste told Space.com. "However, their origin has ...

Astronomers led by Stanford University and Harvard believe the "remarkable" cosmic explosion could either be the first X-ray burster ever discovered in the Large Magellanic Cloud (LMC), a rare ...

revealing correlations between solar modulation and cosmic ray movement. AMS measurements provide insights i... Cosmic rays and their byproduct, muons, may help scientists study tornado formation ...

When Nojiri and colleagues simulated what that supernova was like, they found that it hammered the Earth with cosmic rays for 100,000 years following the blast. The model perfectly explained a ...

The space agency said Wednesday an instrument on Voyager 2 that measures charged particles and cosmic rays will shut off later this month. Last week, NASA powered down an instrument on Voyager 1 ...

When Nojiri and colleagues simulated what that supernova was like, they found that it hammered the Earth with cosmic rays for 100,000 years following the blast. The model perfectly explained a ...

Imagine looking out over a beautiful vista. The sun glances off the snowy peaks of distant mountains, a river winds through rolling hills. There is something wonderful about beholding the contours ...

Another possibility is that this is the first observed cosmogenic neutrino, created when ultrahigh energy cosmic rays mingle with photons from the cosmic microwave background, the afterglow of the ...

Another possibility, however, is that the high-energy neutrino was created when an ultramassive cosmic ray particle slammed into particles of light, or "photons," left in the universe after some ...

I don't mean the mythological birds of flame and rebirth, but rather a cosmic namesake with a fittingly ... the Chandra X-ray Observatory and a wealth of ground-based observatories.