This planetary nebula, Mz3, is being cast off by a star similar to our Sun. The 1000-kilometer per second speed of the expelled gas, the light-year long length of the structure, and the magnetism of the star visible at the nebula's center, all imply Mz3 is hiding a second, dimmer star that orbits close in to the bright star. A competing hypothesis holds that the central star's own spin and magnetic field are channeling the gas. (ESA, NASA's Hubble, JPL-CalTech)
XKCD "WHAT IF" is generally awesome, but today was particularly awesome for those of us who like math and like The Proclaimers and think space is really cool... so me.
USS Enterprise NCC-1701-B circa 2330, the Enterprise served as a test bed for the proposed refit of the Excelsior class Heavy Cruiser to improve speed and offensive capabilities. The test failed and all resources were allocated to the Ambassador class. The Enterprise was decommissioned after the test after the experimental pieces were removed and it was placed on static display at the Starfleet Museum orbiting Terra Prime