Mars in the Beehive
From Spaceweather.com:
On Thursday, June 15th, the planet Mars will glide through the Beehive star cluster, producing a beautiful display for backyard telescopes. It will look as if a red supernova (Mars) has gone off inside the cluster. Mars is easy to find in the western sky shortly after sunset; it's right beside the planet Saturn. [sky map] [full story]