News tagged with energetic particles

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The remarkable remains of a recent supernova

(Phys.org) —Astronomers estimate that a star explodes as a supernova in our Galaxy, on average, about twice per century. In 2008, a team of scientists announced they discovered the remains of a supernova ...

Jun 26, 2013
4.6 / 5 (9) 2 | with audio podcast

Metamorphosis of moon's water ice explained

Using data gathered by NASA's Lunar Reconnaissance Orbiter (LRO) mission, scientists believe they have solved a mystery from one of the solar system's coldest regions—a permanently shadowed crater on the ...

Jun 19, 2013
5 / 5 (6) 0 | with audio podcast

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 | with audio podcast

NASA supports Extreme Universe Space Observatory

The National Aeronautics and Space Administration has awarded $4.4 million to a collaboration of scientists at five U.S. universities and NASA's Marshall Space Flight Center to help build a telescope for ...

Mar 08, 2013
5 / 5 (7) 5 | with audio podcast

Solar variability and terrestrial climate

(Phys.org)—In the galactic scheme of things, the Sun is a remarkably constant star. While some stars exhibit dramatic pulsations, wildly yo-yoing in size and brightness, and sometimes even exploding, the ...

Jan 11, 2013
5 / 5 (15) 122 | with audio podcast