Results 31 to 40 of about 5,483 (127)
Origin theories for the eccentricities of extrasolar planets [PDF]
, 2007 Half the known extrasolar planets have orbital eccentricities in excess of 0.3. Such large eccentricities are surprising as it is thought that planets form in a protoplanetary disk on nearly circular orbits much like the current states of the solar ...
Namouni, Fathi
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Meteoritics &Planetary Science, Volume 59, Issue 6, Page 1236-1257, June 2024.Abstract Cosmic dust particles originate from a wide variety of solar system and interstellar objects, including sources not identified among meteorite collections. Particles that survive atmospheric entry are retrieved on the Earth's surface as micrometeorites. The recovery of these micrometeorites has recently advanced to rooftop sites.
Guido Jonker +4 more
wiley +1 more source
Space fantasy: Nagaoka Shusei's contributions to Afrofuturist visual culture
The Journal of American Culture, Volume 48, Issue 1, Page 3-22, March 2025.
Nathan Hesselink
wiley +1 more source
Names are selected for NASA spaceflight projects and programs from various sources. Some have their foundations in mythology and astrology or legend and folklore.
Karegeannes, C. E. +2 more
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3D/Biela and the Andromedids: Fragmenting versus Sublimating Comets [PDF]
, 2007 Comet 3D/Biela broke up in 1842/1843 and continued to disintegrate in the returns of 1846 and 1852. When meteor storms were observed in November of 1872 and 1885, it was surmised that those showers were the debris from that breakup.
Jenniskens, P., Vaubaillon, J.
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Elements of cost comparison for planetary missions with advanced propulsion [PDF]
Cost and performance comparisons are made between chemical propulsion and nuclear electric propulsion for planetary missions at Jupiter and beyond. Nuclear rocket comparisons are made for performance only.
Stearns, J. W.
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, 2018 Several technologies have been proposed for deflecting a hazardous Solar System object on a trajectory that would otherwise impact the Earth. The effectiveness of each technology depends on several characteristics of the given object, including its orbit
Dahlstrom, Eric +6 more
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A survey of selected coastal vegetation communities of Florida [PDF]
, 1977 A survey of coastal vegetation around Florida was conducted during 1973 and 1974. Seventeen sites were selected and sampled using the transect method to determine species occurrence, relative densities, and habitat development and structure.
Carlton, Jedfrey M.
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, 2015 Some asteroids eject dust, producing transient, comet-like comae and tails; these are the active asteroids. The causes of activity in this newly-identified population are many and varied.
Agarwal, Jessica +2 more
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Solid rocket technology advancements for space tug and IUS applications [PDF]
In order for the shuttle tug or interim upper stage (IUS) to capture all the missions in the current mission model for the tug and the IUS, an auxiliary or kick stage, using a solid propellant rocket motor, is required.
Ascher, W. +3 more
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