Andromeda

GALAXY SECRET  

spiros66

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A zoom diving deep into the nucleus of the Andromeda Galaxy (M31) then dissolving into an animation of a concentration of red stars.

• Pushing deeper into the animation reveals a disk of young blue stars swirling around a black hole. 

Hubble's Space Telescope Imaging Spectrograph (STIS) revealed this disk of young blue stars that were swirling around a black hole in M31 in much the same way that the planets in our solar system revolve around the Sun. 

• Astronomers are perplexed about how the pancake-shaped disk of stars could form so close to a giant black hole.

• In such a hostile environment, the black hole's tidal forces should tear matter apart, making it difficult for gas and dust to collapse and form stars. 

The observations, astronomers say, may provide clues to the activities in the cores of more distant galaxies.

Hole in the Galaxy

tdarnell

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On August 25, 2003, NASA launched the Spitzer Space Telescope. 

• Designed to peer into the infrared region of the spectrum, this instrument was designed to pierce the veil of dust and gas blocking visible light and look deeper into galaxies, where young stars are born.

  
How the Andromeda Galaxy Works

terminator6645

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