<p>Jupiter eclipsing Ganymede. Tricolor view (B=F330W, G=F435W, R=F658N) taken from HST's now defunct High Resolution Channel on January 19th 2005 around 22:04 UTC.
</p><p>Notes:
-Blacked out region is not an alien monolith I promise. It's the "Fastie finger", a coronagraph that was part of the HRC instrument. 
</p>
Credit: NASA/ESA/STScI/Hypatia Alexandria
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/160078282@N02">Hypatia Alexandria</a> from Santa Fe
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/deealexandria42/32863204587/">Jupiter &amp; Ganymede Eclipse - HST</a>