HUBBLE THURSDAY

(Intricate structures of concentric gas shells, jets of high-speed gas and shock-induced knots of gas make up this complicated planetary nebula. The Cat's Eye Nebula is about 1,000 years old, and could have resulted from a double-star system. Click on image to enlarge.)

Every Thursday, I post a very large photograph of some corner of space captured by the Hubble Space Telescope and available online from the picture album at HubbleSite.

Each that we lose takes part of us;
A crescent still abides,
Which like the moon, some turbid night,
Is summoned by the tides.
~~poem #97 by Emily Dickinson