Nebula Butterfly Sun with a horizontal span of

with a horizontal span of 890 light-years and a vertical span of 640 light-years

and Spitzer (red)

As filming extended over several months

is captured here as a colorful halo of light moving across Saturn's sunlit rings

imagine a sky with no Earth or Moon - what will farside explorers think with no Earth overhead

Nebula Butterfly Sun with a horizontal span ofA powerful butterfly indeed! What looks like delicate butterfly wings are actually roiling cauldrons of super heated 36,000 degrees Fahrenheit gas. The gas is racing across space at 600,000 MPH. This Hubble beauty is a big favorite! A dying star that was once about five times the mass of the Sun is at the center of this fury. It has ejected its envelope of gases and is now unleashing a stream of ultraviolet radiation that is making the cast off