NASA - Exploring the Universe

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Hubble Servicing Mission 4

Shuttle astronauts return to extend the life of the famed observatory

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Spitzer Space Telescope

Unlocking the mysteries of the universe with infrared eyes.

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Composite image of the central region of Orion

Science Mission Directorate

NASA studies the universe from the smallest particles of matter and energy to the biggest questions of the evolution and structure of the cosmos.

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Latest Features

'Ghost of Mirach' Materializes in Space Telescope Image

10.31.08

NASA's Galaxy Evolution Explorer has lifted the veil off a ghost known to haunt the local universe, providing new insight into the formation and evolution of galaxies.

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Hubble Scores a Perfect Ten

10.30.08

Just a few days after the orbiting observatory was brought back online, Hubble aimed its sights on a pair of gravitationally interacting galaxies.

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Searching for Primordial Antimatter

10.30.08

Scientists hunt for evidence of antimatter -- matter's arch nemesis -- left over from the very early Universe.

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More Features

Closest Planetary System Hosts Two Asteroid Belts

New observations from NASA's Spitzer Space Telescope indicate that the nearest planetary system to our own has two asteroid belts.
Fermi Telescope Discovers Gamma-Ray-Only Pulsar

A 10,000-year-old stellar corpse, called a pulsar, is the first one known that only "blinks" in gamma rays, as discovered by NASA's Fermi Gamma-ray Space Telescope.
Two Black Holes Teach Astronomers a Lesson

Observations of two different systems -- each containing stellar-mass black holes -- are showing astronomers how much they have yet to learn.
NASA's Spitzer Gets Sneak Peek Inside Comet Holmes

When comet Holmes unexpectedly erupted in 2007, professional and amateur astronomers around the world turned their telescopes toward the spectacular event.
Splashy Portrait Helps Explain How Stars Form

Different wavelengths of light swirl together like watercolors in a new, ethereal portrait of a bright, star-forming region.

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Latest News Releases

NASA Managers Delay Hubble Servicing Mission

10.30.08 - NASA managers have announced that they will not meet a February 2009 launch date for the fifth and final shuttle mission to the Hubble Space Telescope.
NASA Updates Thursday's Hubble Servicing Mission and Space Shuttle Readiness Review Briefing Times

10.30.08 - The time of Thursday's media teleconference to discuss the status of the shuttle servicing mission to the Hubble Space Telescope has changed to 5:30 p.m. EDT. A news conference at the Kennedy Space Center in Florida to discuss the status of the next space shuttle launch now will begin no earlier than 6:30 p.m.