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

Fingers, Loops and Bays in the Crab Nebula

11.05.08

Data from Chandra provides the first clear view of the faint boundary of the Crab Nebula?s X-ray-emitting pulsar wind nebula.

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'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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More Features

Searching for Primordial Antimatter

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

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Latest News Releases

Hubble Announces A Major Extrasolar Planet Discovery

11.07.08 - NASA will hold a Science Update to report on a significant discovery about planets orbiting other stars at 2:30 p.m. EST, Thursday, Nov. 13.
NASA Selects Astronomy Student Ambassadors

11.04.08 - Forty-six undergraduate and graduate students have been selected to represent NASA in their local communities as recipients of the agency's International Year of Astronomy, or IYA, Student Ambassadors Program.