This video begins with a view of the stars in the constellation Cygnus. We zoom into the Cygnus OB2 association region, and then into a Hubble view of protostar IRAS 20234+4057. This light-year-long knot of interstellar gas and dust resembles a caterpillar on its way to a feast.

Credit: NASA, ESA, and G. Bacon (STScI)

Publication: August 29, 2013