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Aspects of the major element composition of Halley's dust
The chemical composition of the solid grains from comet Halley can be inferred from impact-ionization time-of-flight mass spectrometry. Halley's dust in the vicinity of the VEGA-1 spacecraft is a
Surface of Young Jupiter Family Comet 81P/Wild 2: View from the Stardust Spacecraft
Images taken by the Stardust mission during its flyby of 81P/Wild 2 show the comet to be a 5-kilometer oblate body covered with remarkable topographic features, including unusual circular features
Discovery of Jovian dust streams and interstellar grains by the Ulysses spacecraft
ON 8 February 1992, the Ulysses spacecraft flew by Jupiter at a distance of 5.4 AU from the Sun. During the encounter, the spacecraft was deflected into a new orbit, inclined at about 80° to the
The Galileo dust detector
The Galileo Dust Detector is intended to provide direct observations of dust grains with masses between 10−19 and 10−9 kg in interplanetary space and in the Jovian system, to investigate their
The Cometary and Interstellar Dust Analyzer at Comet 81P/Wild 2
The CIDA instrument on the Stardust spacecraft is a time-of-flight mass spectrometer used to analyze ions formed when fast dust particles strike the instrument's target, which suggests that sulfur species are important in cometary organics.
The organic component in dust from comet Halley as measured by the PUMA mass spectrometer on board Vega 1
Following the encounter of the Vega 1 spacecraft with comet Halley, the composition of cometary dust has been analysed by mass spectroscopy. Most particles consist of a predominantly chondritic core
Shape, density, and geology of the nucleus of Comet 103P/Hartley 2
Data from the Extrasolar Planet Observation and Deep Impact Extended Investigation (EPOXI) mission show Comet 103P/Hartley 2 is a bi-lobed, elongated, nearly axially symmetric comet 2.33 km in
A distribution of large particles in the coma of Comet 103P/Hartley 2
The coma of Comet 103P/Hartley 2 has a significant population of large particles observed as point sources in images taken by the Deep Impact spacecraft. We measure their spatial and flux
Reduction of Galileo and Ulysses dust data
Abstract The reduction procedures which are applied to raw data from the Galileo and Ulysses Dust Detectors are described in order to obtain physical parameters (mass and velocity) for the recorded
Comet 81P/Wild 2 Under a Microscope
The Stardust spacecraft collected thousands of particles from comet 81P/Wild 2 and returned them to Earth for laboratory study. The preliminary examination of these samples shows that the nonvolatile