Conditions in the vast universe can be quite extreme: Violent collisions scar the surfaces of planets. Nuclear reactions in bright stars generate tremendous amounts of energy. Gigantic explosions catapult matter far out into ...
General Physics
Apr 15, 2016
35
2542
(Phys.org)—Astronomers using data from NASA's Fermi Gamma-ray Space Telescope have made the most accurate measurement of starlight in the universe and used it to establish the total amount of light from all of the stars ...
Astronomy
Nov 1, 2012
14
0
(PhysOrg.com) -- The term "laboratory astrophysics" might sound like an oxymoron; after all, how can equipment in a small room possibly simulate cosmic effects seen in the vastness of space. But in fact, much of modern astrophysics ...
Astronomy
Apr 2, 2012
0
0
Stochastic acceleration and shock acceleration are well recognized as key mechanisms for cosmic ray generation since they were first proposed by Fermi. These two mechanisms have been widely investigated via analytical models ...
Plasma Physics
Dec 3, 2015
1
11
It has been difficult to simultaneously obtain micro- and macroscopic information in outer space. Global images of distant astrophysical phenomena provide macroscopic information, however local information is inaccessible. ...
Plasma Physics
Dec 3, 2018
0
6
