C/2013 R1 (Lovejoy) - Stack on comet on Flickr.
astronomy comet lovejoy
Moon and Jupiter on Flickr.
astronomy moon jupiter conjunction
Moon and Jupiter rising over Earth trees (Morning of July 15, 2012).
astronomy moon jupiter
Video of the Moon and Jupiter rising.
astronomy moon jupiter video
Jupiter and its satellites rising alongside the Moon.
Leap second at 23:59:60 UTC.
leap second video
70-meter dish antenna at Madrid Deep Space Communications Complex talking to the MESSENGER orbiter around Mercury.
astronomy astronautics nasa planetary exploration mdscc jpl
The sun setting behind tree leaves.
astronomy stars star trails