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magnetic fields in starburst galaxies
Science; General science
A normal galaxy like the Milky Way produces a few new stars each year. Starburst galaxies create new stars much more frequently, especially in the central regions, at rates tens ...
perseus
Science; General science
A northern constellation named for a Greek hero (see illustration ). Perseus and adjacent Cassiopeia are prominently located in the northern Milky Way. In Johan Bayer's (1603) ...
gyrocompass
Science; General science
A north-seeking form of gyroscope used as a directional reference in navigation. The first practical gyrocompasses were developed by H. Anschütz (Germany) in 1908, E. A. Sperry ...
thermonuclear reaction
Science; General science
A nuclear fusion reaction which occurs between various nuclei of the light elements when they are constituents of a gas at very high temperatures. Thermonuclear reactions, the ...
spallation reaction
Science; General science
A nuclear reaction that can take place when two nuclei collide at very high energy (typically 500 MeV per nucleon and up), in which the involved nuclei are either disintegrated ...
adenosine triphosphate (ATP)
Science; General science
A nucleotide composed of three subunits: ribose (5-carbon sugar), adenine (a nitrogenous base composed of two carbon-nitrogen rings), and a triphosphate group (a chain of three ...
beta-delayed neutron emission
Science; General science
A number of different processes, including alpha-, beta-, and gamma-ray emission, exist by which radioactive nuclei are transformed into stable nuclei. Because these processes are ...
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