Caption from URL states in part "…the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of Mars and Jupiter. ... Twin jets of material can also be seen shooting away from the comet in the short, fan-shaped emission, spreading horizontally from the comet."
Object Name: Comet Encke
Distance: 2.0 AU from Spitzer (at time of observation)
Image Credit: NASA/JPL-Caltech/M. Kelley (Univ. of Minnesota)
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2]
{{PD-USGov-NASA}} from "medium resolution" option at http://www.spitzer.caltech.edu/Media/releases/ssc2005-04/ssc2005-04a.shtml using the NASA [[Spitzer Space Telescope]]. Object Name: Comet Encke Distance: 2.0 AU from Spitzer (at time of observation)
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