Hubble's image shows NGC 3201, a globular cluster of stars discovered in 1826 by James Dunlop, noted for its size and irregular centre. This Hubble image shows RS Puppis, a Cepheid variable star that ...
Astronomers believe that the Cone Nebula is an incubator for developing stars. Over time, the densest regions of the nebula will remain, and stars and planets may form there.