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BellaOnline's Astronomy Editor

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Astrophysics

Using physics to study the universe and the objects in it such as stars, galaxies, black holes and nebulae.

ABC of Astronomy - D Is for Double Star star
Weīre used to having just one Sun, so the planet Tatooine in George Lucasīs Star Wars seems exotic with its double sun. Yet at least half the stars we can see in the sky are doubles. But a "double star" can be a true binary or just an optical double, which is a chance alignment of unrelated stars.

Bang! - Book Review star
What would it take to explain the Big Bang Theory? James Lu Dunbarīs "Bang!" might do it - and amuse you and your children at the same time. Itīs a splendid little book which tells the story of the universe in verse and appealing graphics.

Bang! - The Universe Verse - book review star
What would it take to explain the Big Bang Theory? James Lu Dunbarīs "Bang!" might do it - and amuse you and your children at the same time. Itīs a splendid little book which tells the story of the universe in verse and appealing graphics.

Georgeīs Secret Key to the Universe - book review star
In Lucy & Stephen Hawkingīs book, the hero George used to have a quiet life, but now heīs trying to rescue his next door neighbor from a black hole. Hereīs a lively illustrated story, beautiful color images of the universe, and from the man who knows, a great explanation of what a black hole is.

Icarus at the Edge of Time - book review star
Icarus flew too close to the Sun with wings of wood and wax. The wax melted and he fell to his death. Brian Greeneīs Icarus of the future flies too close to a black hole and finds that he should have paid more attention to Einstein.

Quasar Facts for Kids star
Quasars are the brightest and most distant objects in the universe. And when we see them we are looking into the past, even before our Sun and Solar System existed.

Smallest Star in the Universe star
No one could possibly say that a star is the smallest one in the whole Universe. But the smallest known star is 2MASS J05233822-1403022, which is a pretty big name for a star thatīs about the size of Saturn. Could there be even smaller ones as yet unknown?

Stellar Evolution star
The life histories of stars from birth in nebula, through the main part of their lives (the main sequence) and on to the end, possibly as a white dwarf or in a supernova explosion.

The Magic Furnace - book review star
What is everything made of? What makes the Sun shine? "The Magic Furnace" relates the tale of how science answered these questions. The book tells a good detective story with great characters, and clues include the Big Bang and the biggest explosions in the universe.

Top Astronomy Stories 2012 star
What were the big astronomy stories of the year 2012? Here is my choice of the top ten plus a non-story. What do you think?

Astronomy Homepage | Editor's Picks Articles | Top Ten Articles | Astronomy Site Map

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Past Issues

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Mars Myths – Would You Believe Them

How the Sun Will Die - Facts for Kids

Mizar and Alcor – Horse and Rider

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