What are your favorite astronomical entities?

Pre-College Topics High School Life
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<p>[APOD:</a> 2008 July 22 - Happy People Dancing on Planet Earth](<a href=“http://apod.nasa.gov/apod/ap080722.html]APOD:”>APOD: 2008 July 22 - Happy People Dancing on Planet Earth)</p>

<p>Andromeda and M101 Pinwheel look pretty awesome though.</p>