clipped from: www.badastronomy.com   

Top Ten Astronomy Pictures of 2007

Number 10: A Comet Bursts Forth
Picture of Comet Holmes
Number 9: A Black Hole on Mars
A hole on Mars
Number 8: The Wonderful
Galex picture of the star Mira

Mira is like a comet! But a lot, lot bigger: the tail of Mira is 13 light years (130 trillion kilometers/80 million miles) long.

Number 7: The Lover’s Embrace of Arp 87
Picture of interacting galaxies Arp 87
Number 6: Lightning at Weikerscheim Observatory
Lightning at Weikerscheim Observatory
Number 5: A Meeting of the Moons
New Horizons picture of Io and Europa
Number 4: Dark Matter Makes an Appearance
Hubble image of the galaxy cluster CL0024+1652 and a ring of dark matter around it
Chandra picture of dark matter in cluster Abell 520
The Vela Supernova remnant, from The Sky Factory

Number 2: STEREO Eclipse

The Beautiful Face of IC 342

Picture of IC342, an incredible face-on spiral galaxy