1999

• 5/6/1999 STScI-1999-16 11. Internet Voters Get Two Galaxies in One from Hubble Located about 130 million light-years away, NGC 4650A is one of only 100 known polar-ring galaxies. Their unusual disk-ring structure is not yet understood... (More)

1998

• 8/19/1998 STScI-1998-26 12. Distant Heavyweight Galaxy Cluster Clobbers Dense-Universe Theory A Space Telescope Science Institute astronomer has found the equivalent of the proverbial 900-pound gorilla in deep space. The "gorilla" is an extremely massive cluster... (More)
• 1/8/1998 STScI-1998-02 13. Hubble Pinpoints Distant Supernovae Peering halfway across the universe to analyze light from exploded stars that died long before our Sun even existed, the Hubble telescope has allowed astronomers to determine that the expansion... (More)

1997

• 1/14/1997 STScI-1997-02 14. Hubble Finds Intergalactic Stars The Hubble telescope has found a long-sought population of "stellar outcasts" ? stars tossed out of their home galaxies into the dark emptiness of intergalactic space. (More)

1996

• 5/9/1996 STScI-1996-21 15. Hubble Space Telescope on Track for Measuring the Expansion Rate of the Universe Using the Hubble telescope, two international teams of astronomers are reporting major progress in converging on an accurate measurement... (More)

1995

• 10/18/1995 STScI-1995-43 16. Hubble Discovers New Class of Gravitational Lens for Probing the Structure of the Cosmos The Hubble telescope has discovered a new, distant class of quadruple or cross-shaped gravitational lenses. (More)
• 3/31/1995 STScI-1995-22 17. Hubble Data Suggest Galaxies Have Giant Halos NASA's Hubble Space Telescope has helped solve a two-decade-old cosmic mystery by showing that mysterious clouds of hydrogen in space may actually be vast halos of gas surrounding... (More)
• 1/19/1995 STScI-1995-05 18. Hubble Identifies Huge Clouds of Intergalactic Gas Astronomers using NASA's Hubble Space Telescope have discovered evidence that clouds of hydrogen found between galaxies at distances of billions of light-years... (More)

1994

• 10/17/1994 STScI-1994-41 19. Hubble Rules Out a Leading Explanation for Dark Matter Astronomers have ruled out the possibility that red dwarf stars constitute the invisible matter, called dark matter, believed to account for more than 90 percent... (More)

1993

• 1/4/1993 STScI-1993-05 20. Dark Matter Found in a "Typical" Cluster of Galaxies Astronomer John S. Mulchaey, of the Space Telescope Science Institute (STSCI) and fellow team members announced today the discovery of a huge concentration... (More)