Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Although astronomers can only presently speculate, the Hubble Space Telescope clearly documents this unusual behavior in three dramatic photographs over the past five years. The XZ Tauri star system is known to reside in the Taurus star forming region located about 500 light-years away. XZ Tau is composed of two very young stars separated by roughly the same distance as between our Sun and Pluto . The bubble has been expanding over the past thirty years and now extends to nearly fifteen times the binary separation.
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