Discovering a new galaxy: the milky way is tearing it apart.

Highlights for Children | August 1, 2009| | Copyright

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When you go on a treasure hunt, you might find a strange rock, a beautiful seashell, or a colorful flower.

Astronomers seek their treasures in the sky.

Sometimes they find a new planet. Sometimes they find a new star.

But in 1994, Dr. Rodrigo Ibata and two other astronomers discovered a new galaxy. A galaxy is a big group of stars, gas, dust, and dark matter held close to one another by their own gravity.

Our galaxy, the Milky Way, has more than 100 billion stars. It is so big that if a beam of light set out ...

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