Hubble uncovers a vast, complex dust structure, about 150 billion miles across, enveloping the young star HR 4796A. A bright, narrow inner ring of dust is already known to encircle the star, based on much earlier Hubble images. This newly discovered huge dust structure around the system may have implications for what a yet-unseen planetary system looks like around the 8-million-year-old star. Credit: NASA/ESA/G. Schneider (Univ. of Arizona)
Astronomers have used NASA’s Hubble Space Telescope to uncover a vast, complex dust structure, about 150 billion miles across, enveloping the young star HR 4796A. A bright, narrow, inner ring of dust is already known to encircle the star and may have been corralled by the gravitational pull of an unseen giant planet...
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