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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Hyperion's sponge-like appearance

Article Abstract:

The research report on high-resolution images of Hyperion satellite of Saturn that reveals a unique sponge-like appearance at scales of a few kilometres is reported.

Author: Helfenstein, P., Thomas, P.C., Veverka, J., Tortora, P., Asmar, S.W., Armstrong, J.W., Burns, J.A., Denk, T., Giese, B., Iess, L., Johnson, T.V., McEwen, A., Nicolaisen, L., Porco, C., Rappaport, N., Richardson, J., Somenzi, L., Turtle, E.P.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
Science & research, Research, Saturn (Planet), Hyperion (Satellite)

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Discovery and properties of Dactyl, a satellite of asteroid 243 Ida

Article Abstract:

Dactyl, a satellite associated with the asteroid 243 Ida, was discovered and studied by the spacecraft Galileo. Dactyl, which was formed at the same time as Ida by the breaking of a Koronis body, is ellipsoid and its spectral curvature is greater than that of other members of the Koronis family. This difference is probably due to weathering since the spectral properties of young craters on Ida resemble those of the spectrum of both Ida and Dactyl. The surface of Dactyl contains craters and is smoother than that of Ida because of constant breaking and re-formation with debris from Ida.

Author: Helfenstein, P., Thomas, P.C., Veverka, J., Merline, W.J., Denk, T., Johnson, T.V., McEwen, A., Davies, M.E., Chapman, C.R., Klaasen, K., Belton, M.J.S., Harch, A.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
Discovery and exploration, Asteroids

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Subjects list: Observations, Satellites, Satellites (Astronomical bodies)
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