The two loop-like structures, identified in this Hubble image from five years ago, have taught us a tremendous amount about the final life stages of a pre-supernova star. Image credit: ESA/Hubble & NASA
Eta Carinae, one of the most massive stars known. Image credit: NASA
IRAS 14568-6304, The young star is a particularly spectacular sight since it has a protostellar jet. This tail-like formation beneath the star is composed of remnants of gas and dust from the parent cloud that gave birth to the star. | Image credit: NASA/Hubble.