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... the book by Eckart. The highest energy radiation comes in the form of galactic cosmic rays and solar particles. Galactic radiation comes from supernova explosions and is composed of protons, electrons, and ... to be a critical health issue. Beyond the shield of Earth’s magnetosphere, solar and galactic radiation can cause severe cellular damage or even cancer. The crew will need to be ...

... annual appropriations." ''(CR, 1/23/64, 932)'' New evidence of possible explosions in Milky Way galactic core, reported by Soviet astronomer Dr. Iosif S. Shklovsky, was discussed by British astronomer Dr ... below the galaxy are connected in a single figure-8 configuration, its center at the galactic core. It is possible that the loops, which are strong sources of radio emissions, are ...

... study solar cosmic rays, spectrum and composition of cosmic ray particles, nuclear interactions of galactic origin, and galactic gamma rays. ''(Tass, 8/6/65)'' A new helicopter world record was set by ...

... satisfactorily and mission objectives had been exceeded. Nine operational experiments were providing detailed information on galactic and solar cosmic rays, interplanetary medium, and distant magnetosphere. All systems and experiments were functioning ... had been launched close to solar maximum, sun had been unusually quiet. However, low-energy galactic cosmic rays appeared to be more strongly modulated than observed previously and interplanetary conditions appeared ...

... Range , N. Mex., Black Brant VC carried Univ. of California galactic astronomy experiment. Nike-Apache carried California Institute of Technology galactic astronomy experiment. Rockets and instrumentation performed satisfactorily. ''(SR list)'' NASA announced ...

... vehicle. Primary objective of Explorer 48 was to measure spatial and energy distribution of primary galactic and extragalactic gamma radiation-within SAS program to make investigations of celestial sphere from above ... gamma rays exceeding 20 mev in energy, in region of electromagnetic spectrum able to penetrate galactic and extragalactic matter. On Nov. 19 half of experiment's high-voltage supplies were turned ...

... on Nov. 19, 1972, and had observed gamma rays in the region of the galactic center, galactic plane, and various x-ray sources. A sky map of gamma rays would be prepared ...

... and the last scheduled U.S. mission to the moon, Explorer 49 was to measure galactic and solar radio noise at frequencies below ionospheric cutoffs and outside terrestrial background interference, using ... 38 (RAE 1)-the first successful radio astronomy satellite, launched July 4, 1968-had measured galactic radio sources and traced the movement of sporadic radio outbursts from the sun beyond the ...

... . It had satisfied its primary objective of measuring the spatial and energy distribution of primary galactic and extragalactic gamma radia-tion for six months. Explorer 48 had observed a weak but finite compo-nent of high-energy gamma ray photons at galactic latitudes greater than 20° and a positive flux of gamma rays from the Crab Nebula ...

... the x-ray emission of discrete extragalactic sources, to monitor the intensity and spectra of galactic x-ray sources from 1.0 kev to 50 kev, and to monitor the x ... of x-ray sources in space) and Explorer 48 (launched 16 Nov. 1970 to study galactic and extragalactic gamma radiation). Explorer 53 , with its broad spectral range, provided higher energy resolution ...

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