Photo Credit (Full size): An Expanding Bubble in Space, October and November 1997 and April 1999 (Release date: January 13, 2000), STScI-2000-04, NASA's Earth-orbiting Hubble Space Telescope (http://HubbleSite.org); Donald Walter (South Carolina State University, USA), Paul Scowen and Brian Moore (Arizona State University, USA), National Aeronautics and Space Administration (NASA, http://www.nasa.gov), Government of the United States of America (USA). Research Team: Donald Walter (South Carolina State University, USA), Paul Scowen, Jeff Hester, Brian Moore (Arizona State University, USA), Reggie Dufour, Patrick Hartigan and Brent Buckalew (Rice University, USA).