2006

• 8/21/2006 STScI-2006-39 11. NASA Finds Direct Proof of Dark Matter Dark matter and normal matter have been wrenched apart by the tremendous collision of two large clusters of galaxies. This composite image shows the galaxy cluster 1E 0657-56... (More)

2004

• 6/1/2004 STScI-2004-19 12. Spitzer Leads NASA's Great Observatories to Uncover Black Holes, Other Hidden Objects in the Distant Universe Astronomers unveiled the deepest images from NASA's new Spitzer Space Telescope today, and announced the detection... (More)
• 2/20/2004 STScI-2004-12 13. New Clues About the Nature of Dark Energy: Einstein May Have Been Right After All The good news from NASA's Hubble Space Telescope is that Einstein was right — maybe. A strange... (More)

2003

• 6/19/2003 STScI-2003-18 14. The Secret Lives of Galaxies Unveiled in Deep Survey Two of NASA's Great Observatories, bolstered by the largest ground-based telescopes around the world, are beginning to harvest... (More)
• 1/7/2003 STScI-2003-01 15. Biggest 'Zoom Lens' in Space Takes Hubble Deeper into the Universe The Advanced Camera for Surveys (ACS) aboard NASA's Hubble Space Telescope has used a natural "zoom lens" in space to boost its view of the distant... (More)

2000

• 8/24/2000 STScI-2000-29 16. Hubble Takes Census of Elusive Brown Dwarf Stars Astronomers using NASA's Hubble Space Telescope have carried out the most complete inventory to date of brown dwarfs, one of the universe's most elusive... (More)
• 5/3/2000 STScI-2000-18 17. Lost and Found: Hubble Finds Much of the Universe's Missing Hydrogen For the past decade astronomers have looked for vast quantities of hydrogen that were cooked up in the Big Bang but somehow managed to disappear... (More)

1999

• 5/6/1999 STScI-1999-16 18. 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 19. 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 20. 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)