Space: the Final Frontier

One of the most beautiful of all galaxies is M51. It's nicknamed the Whirlpool because of its well-defined spiral arms. It's just below the star that marks the Big Dipper's handle. It actually consists of two galaxies -- the big spiral, and a smaller galaxy that looks like it's being reeled in by the bigger one.
In fact, though, the smaller galaxy is pulling away from the bigger one. As they move apart, their gravity is pulling out long streamers of stars. Larger image.

The Hubble telescope reveals the heart of the Whirlpool Galaxy.
 

Learn about the August 12th meteor shower.

Index to other sections

• Tables

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OOOO

Oxides	Sulfates
Oxygen and metal ions	Sulfate ion and metal ions
Hematite	Gypsum
Magnetite	Barite
Corundum

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Starring...	Captain Queeg	And a cast of thousands...

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