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g Astronomy Site

BellaOnline's Astronomy Editor

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Constellation or Asterism
Constellations and asterisms are both patterns of stars. So what is a constellation? And If Saturn is in the constellation Virgo, has it left the Solar System? Why is the Big Dipper an asterism and not a constellation?

Constellations Facts for Kids
Some of our constellations go back thousands of years. Others were invented when Europeans began to explore the distant seas of the southern hemisphere. But what's the difference between a constellation, an asterism and a star cluster? And what does the constellation Pyxis represent?

Copernicus - His Life
The day job of Nicolaus Copernicus, the reluctant revolutionary, was canon of a cathedral. The last resting place of this man who turned astronomy on its head was unmarked. How did his student astronomy books help to identify his remains four and a half centuries later?

Copernicus - the Revolution
In the 16th century everyone knew that Earth was the center of the cosmos. But this made it impossible to predict the motions of heavenly bodies, even if they moved in elaborate circles within circles. Copernicus turned the idea on its head and put the Sun at the center. A revolution had begun!

Copernicus for Kids
Since the name of Nicolaus Copernicus is still well known nearly five hundred years after his death, why was his grave unmarked until 2010? Find out about the life of the quiet revolutionary that turned our view of the universe inside out.

Cosmic - book review
Cosmic isn't an astronomy text. It's a delightful novel for young people which includes space travel and a cast of great characters, including Liam who's too tall for his age. It's Willy Wonka meets Apollo 13, as the taikonauts get chosen in an unusual draw and end up stranded in space.

Cosmic 4th of July
What links the USA's Independence Day holiday, the Crab Nebula and NASA's Deep Impact spacecraft? What links the American War of Independence with the planet Uranus? And what is the Fireworks Galaxy? Here's the story.

Cosmic Collisions
We no longer see the heavens as perfect and the stars as eternal and unchanging. Even the Universe had a beginning, and everything that we observe changes and evolves. Many of these changes involve cosmic collisions.

Cosmic Equines
Horses galloping and flying; creatures half human, half horse; dark horses invisible but for their silhouettes against the stars behind them. Find out about the cosmic equines that are features of our skies.

Cosmic Father's Day
What sort of tie would you give a cosmic father? What would you feed him? Where might he find challenging mountaineering, make an astounding golf shot or get up an interstellar soccer game? How can you send a special man a genuinely galactic greeting? Here's how.

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