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BellaOnline's Astronomy Editor

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Nebulae

Nebulae are vast clouds of gas and dust between the stars. Some are stellar nurseries, others are remnants of dead stars.

Andromeda the Chained Princess star
Andromeda stands in the northern sky eternally chained to her rock. She is one of the five constellations that Ptolemy described in the second century, all part of one particular ancient Greek myth. In the constellation is a quadruple star, a blue snowball, exoplanets and spiral galaxies.

Astronomy Photographer of the Year 2014 star
There´s a serene aurora, both a violent Sun and an eclipsed one, a stellar nursery and a stellar graveyard, and many more superb pictures. The Astronomy Photographer of the Year 2014 winners were announced in September and you can see all of them.

Cats in the Sky star
There are three constellations named for dogs, but what about cats in the sky? There is astrocat Felicette who went into space and returned safely to Earth, but also constellations of big cats and a pawprint 50 light years across.

Chemical Cosmos - book review star
"The Chemical Cosmos: A Guided Tour" is an astronomy book about chemistry - or perhaps a chemistry book about astronomy. It´s an engrossing guided tour that will take you from the baby Universe through the first stars, the formation of solar systems and to our search for the origins of life.

Cosmic 4th of July star
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 Father´s Day star
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.

Cosmic Ghosts, Ghouls and Vampires star
Astronomers use colorful language for cosmic objects. But unlike ghosts, ghouls and vampires in horror stories, the cosmic ones aren´t scary late at night. Here are tales of the birth, evolution and death of stars, a blinking demon and a star that, at Halloween, seems like the Sun´s ghost.

Cosmic White Christmas star
If you´re dreaming of a white Christmas, the cosmos may have something of interest. How about deep snow on one of Saturn´s moons, a gigantic Christmas tree whose lights are baby stars, a snowman on an asteroid or an Einstein ring?

Creepy Crawlies in Space star
What was the first Earth creature to go into space? Not a dog, but a fruit fly. Insects and arachnids have been mini-astronauts for over sixty years. They have also inspired the naming of heavenly objects.

Exotic Creatures of the Southern Sky star
Constellations telling the ancient tales of gods and heroes are still in use by astronomers. But there are only 48 classical constellations, and the skies around the south celestial pole can´t be seen from the Mediterranean, so those constellations are more modern. Here are some of them.

Exotic Creatures of the Southern Sky star
Constellations telling the ancient tales of gods and heroes are still in use by astronomers. But there are only 48 classical constellations, and the skies around the south celestial pole can't be seen from the Mediterranean, so those constellations are more modern. Here are some of them.

Galactic Winter Games star
Welcome to the Galactic Winter Games, a starry tribute to Earth´s Winter Olympic Games. It´s a tour of some really cool cosmic sights – as well as some hot ones, such as one of the biggest explosions in the Universe.

Gemini - the Celestial Twins star
Gemini. A story of the love and loyalty of two brothers parted only by death. Includes a star that´s actually a system of six stars, and a giant star that can help us measure distances in space. Contains an object that completely baffled astronomers for twenty years.

Gemini – the Celestial Twins star
Gemini. A story of the love and loyalty of two brothers parted only by death. Includes a star that's actually a system of six stars, and a giant star that can help us measure distances in space. Contains an object that completely baffled astronomers for twenty years.

Life and Death of the Sun star
In the distant future the Sun will be many times its present size and thousands of times brighter. It will seed the Galaxy with elements like carbon and oxygen–perhaps for life on a world yet unborn. Then it will collapse into a tiny dead sphere. For a time, a beautiful nebula will mark its place.

Life and Death of the Sun star
In the distant future the Sun will be many times its present size and thousands of times brighter. It will seed the Galaxy with elements like carbon and oxygen–perhaps for life on a world yet unborn. Then it will collapse into a tiny dead sphere. For a time, a beautiful nebula will mark its place.

Nebulae star
Nebulae are titanic clouds of gas and dust - celestial gossamer in the spaces between the stars. They're stellar nurseries, stellar graveyards and dark constellations. Some of their mysteries have been penetrated by infrared telescopes, but the cloaking dust still keeps some secrets.

Nebulae - Ten Facts for Kids star
Nebulae are great clouds of gas and dust in the spaces between the stars. Some of them are made from dying stars. Others are the nurseries for new stars. Here are ten facts about these surprising objects.

Sagittarius the Archer star
In northern hemisphere summer, the ancient zodiac constellation Sagittarius stands low on the southern horizon. It's a special constellation, for when you see Sagittarius, you're looking into the heart of the Milky Way.

Sagittarius the Archer star
In northern hemisphere summer, the ancient zodiac constellation Sagittarius stands low on the southern horizon. It´s a special constellation, for when you see Sagittarius, you´re looking into the heart of the Milky Way.

Saint Patrick's Day – Wearing the Cosmic Green star
Saint Patrick's Day is associated with the shamrock and the color green. Although there don't seem to be any cosmic shamrocks, there are many green phenomena in the skies. Discover a beautiful green nebula, what excites electrons and why con men sold “comet pills”.

Saint Patrick´s Day – Wearing the Cosmic Green star
Saint Patrick´s Day is associated with the shamrock and the color green. Although there don´t seem to be any cosmic shamrocks, there are many green phenomena in the skies. Discover a beautiful green nebula, what excites electrons and why con men sold “comet pills”.

Scorpius the Scorpion star
Anyone wary of spiders may want to avoid the spider's cousin Scorpius. Most constellations don't look like their namesakes. But Scorpius is easily imagined as a giant scorpion with a blood red heart gleaming in the southern sky. It's been an astronomical scorpion for over 3000 years.

Scorpius the Scorpion star
nyone wary of spiders may want to avoid the spider´s cousin Scorpius. Most constellations don´t look like their namesakes. But Scorpius is easily imagined as a giant scorpion with a blood red heart gleaming in the southern sky. It´s been an astronomical scorpion for over 3000 years.

Stars – Ten Facts for Kids star
Stars are nuclear reactors. If a really big one took the Sun´s place, it would swallow up the Sun and everything as far away as Jupiter. Yet others aren´t much bigger than Jupiter. Big stars don´t live very long and die in a blaze of glory. Smaller ones live for billions of years.

Taurus the Bull star
In Greek myth Taurus is Zeus's guise for the seduction of Europa. Yet the bull's red eye still glares at Orion in an enmity created long before the rise of ancient Greece. Today's Taurus is a constellation memorable for its two beautiful star clusters and one of the sky's most amazing objects.

Taurus the Bull star
In Greek myth Taurus is Zeus´s guise for the seduction of Europa. Yet the bull´s red eye still glares at Orion in an enmity created long before the rise of ancient Greece. Today´s Taurus is a constellation memorable for its two beautiful star clusters and one of the sky´s most amazing objects.

The Starry Crowns – Corona Australis star
A wreath, a crown, a wheel of torment, a boomerang. The constellation Corona Australis has represented them all in different traditions. Its stars are dim, but its stories are vivid.

The Starry Crowns – Corona Australis star
A wreath, a crown, a wheel of torment, a boomerang. The constellation Corona Australis has represented them all in different traditions. Its stars are dim, but its stories are vivid.

What Color Is a Nebula star
Nebulae are distant clouds of gas and dust. We see pictures of them in glorious color, but is that what we would we see with our own eyes if we were closer? If not, what color is a nebula?

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