Results 51 to 60 of about 17,217 (108)
Evolution of X-ray astronomy [PDF]
The evolution of X-ray astronomy up to the launching of the Einstein observatory is presented. The evaluation proceeded through the following major steps: (1) discovery of an extrasolar X-ray source, Sco X-1, orders of magnitude stronger than astronomers
Rossj, B.
core +1 more source
Comparison of Four Space Propulsion Methods for Reducing Transfer Times of Manned Mars Mission
, 2015 We assess the possibility of reducing the travel time of a manned mission to Mars by examining four different propulsion methods, and keeping the mass at departure under 2,500 tonnes, for a fixed architecture. We evaluated representative systems of three
Bertolami, O. +2 more
core
X-ray stellar population of the LMC
, 2008 In the study of stars, the high energy domain occupies a place of choice, since it is the only one able to directly probe the most violent phenomena: indeed, young pre-main sequence objects, hot massive stars, or X-ray binaries are best revealed in X ...
Burwitz +19 more
core +1 more source
UAV Atmosphere Sounding for Rocket Launch Support. [PDF]
Sensors (Basel), 2023 Bęben KP +4 more
europepmc +1 more source
Spatial distribution and broad-band spectral characteristics of the diffuse X-ray background, 0.1 - 1.0 keV [PDF]
Preliminary maps covering more than 85 percent of the sky are presented for three energy bands: the B band, the C band, and the M band. The study was undertaken to find evidence that most of the diffuse X-ray background at energies less than 1 keV is ...
Burrows, D. N. +3 more
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87th Annual Meeting of the Meteoritical Society 2025: Contents
Meteoritics &Planetary Science, Volume 60, Issue S1, Page 2-29, August 2025.
wiley +1 more source
87th Annual Meeting of the Meteoritical Society 2025: Abstracts
Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley +1 more source
Spartan Daily, January 13, 1961 [PDF]
, 1960 Volume 48, Issue 61https://scholarworks.sjsu.edu/spartandaily/4115/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
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FY 1991 scientific and technical reports, articles, papers, and presentations [PDF]
Formal NASA technical reports, papers published in technical journals, and presentations by MSFC personnel in FY 1991 are presented. Papers of MSFC contractors are also included.
Turner, Joyce E.
core +1 more source
Special Libraries, April 1953 [PDF]
, 1950 Volume 44, Issue 4https://scholarworks.sjsu.edu/sla_sl_1953/1003/thumbnail ...
Special Libraries Association
core +4 more sources