This clump of gas and dust has given birth to protostars, which represent the earliest steps in building a star. The glowing yellow light in the “head” is the most luminous and massive star. Nearby stars firing ultraviolet radiation at IRAS 20324+4057 creates the intense blue glow, which also sculpts its "tail" into a long, wiggly shape. This clump stretches roughly a light-year from head to tail-tip, and contains gas weighing almost four times the mass of the sun.
"Tadpole (Not in a Jar)." Space.com. N.p., 17 Apr. 2014. Web. 27 Apr. 2014.
Credit: NASA/JPL-Caltech/ESA, the Hubble Heritage Team (STScI/AURA) and IPHAS