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Spitzer Spectral Observations of the Deep Impact Ejecta
Spitzer Space Telescope imaging spectrometer observations of comet 9P/Tempel 1 during the Deep Impact encounter returned detailed, highly structured, 5- to 35-micrometer spectra of the ejecta, and the atomic abundance of the observed material is consistent with solar and C1 chondritic abundances. Expand
Jupiter's Cloud Structure from Galileo Imaging Data☆
The vertical structure of aerosols on Jupiter is inferred from data obtained by the NASA Galileo Solid State Imaging system during the first six orbits of the spacecraft. Images at 889 nm (a strongExpand
Galileo Encounter with 951 Gaspra: First Pictures of an Asteroid
Galileo images of Gaspra reveal it to be an irregularly shaped object that appears to have been created by a catastrophic collisional disruption of a precursor parent body. Expand
Evidence for a subsurface ocean on Europa
High-resolution Galileo spacecraft images of Europa are presented, in which evidence for mobile ‘icebergs’ is found and the detailed morphology of the terrain strongly supports the presence of liquid water at shallow depths below the surface, either today or at some time in the past. Expand
Active Volcanism on Io as Seen by Galileo SSI
Abstract Active volcanism on Io has been monitored during the nominal Galileo satellite tour from mid 1996 through late 1997. The Solid State Imaging (SSI) experiment was able to observe manyExpand
Nucleus properties of P/Schwassmann-Wachmann 1
Time series photometric measurements are presented of Comet P/Schwassmann-Wachmann 1 at a heliocentric distance of 5.886 AU when the comet possessed an extensive coma. The light curve shows aExpand
Bulk density of asteroid 243 Ida from the orbit of its satellite Dactyl
DURING its reconnaissance of the asteroid 243 Ida, the Galileo spacecraft returned images of a second object, 1993(243)1 Dactyl1— the first confirmed satellite of an asteroid. Sufficient data wereExpand
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 inExpand
Extreme Ultraviolet Observations from Voyager 1 Encounter with Jupiter
The observed resonance scattering of solar hydrogen Lyman α by the atmosphere of Jupiter and the solar occultation experiment suggest a hot thermosphere (≥ 1000 K) wvith a large atomic hydrogen abundance. Expand
The Shape of Ida
Abstract Ida's shape is more irregular than that of any solar system object previously encountered by spacecraft. Approximately 95% of the surface was imaged by the Galileo spacecraft at better thanExpand