A collection of articles with an astronomical theme that donīt fit in another category.
A Quick Guide to the Astronomy Site
What are other people reading? Where can I find an astronomy word search? I'd like some help to start observing. What is a meteor shower? Here is a guide to help you find what you want and get the best out of the BellaOnline Astronomy site.
Heres a collection of astronomy jokes for kids, adults and geeks of all ages. Laughter helps to keep us young and healthy, so see if anything tickles your fancy. (And how *does* the Man in the Moon cut his hair?)
Astronomy Joins BellaOnline Games
Need a break from what you're doing? Want to test your astronomy vocabulary and knowledge? Find out about astronomy games and quizzes on bellaonline.
Cats in the Sky
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.
Constellation or Asterism & Other Posers
Constellations, asterisms, galaxies and star clusters are all groups of stars. So how are they different? Why isnt the Big Dipper a constellation? Where are the globular clusters? And if Saturn is in Virgo, has it left the Solar System?
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.
Creepy Crawlies in Space
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.
Distances in Space
You wouldnīt want to know the distance from Boston to San Francisco in inches. And for the same reason, miles arenīt very useful in space. After all, itīs 26 trillion miles to the next nearest star. So how do astronomers deal with these enormous distances?
Does Sound Travel through Space
Can sound travel in space? The short answer is no, but it's not so simple. We can't hear the sound waves, but the Sun produces them. And then there's the black hole that astronomers have detected endlessly singing a B-flat over tens of thousands of light years.
Gravity - Cosmic Glue
Aristotle's perfect cosmos didn't need gravity to hold it together. However a system with planets orbiting the Sun called for an explanation. In the process, Newton was inspired by a falling apple, but Galileo's experiments with falling bodies didn't involve dropping them off the Tower of Pisa.
How to Tell a Planet from a UFO
Two English policemen chased a UFO through the Devon countryside. It was the planet Venus. A news reporter had quite a scoop when she found a UFO hovering over New York City. It was the planet Jupiter. Why are planets and stars often mistaken for spacecraft or aircraft?
Light pollution isn't just a problem for astronomers. It means the loss of an amenity for all of us now and the generations that follow. It affects the natural world, can ruin our health, wastes resources, and what's more, we're paying for it!
Merlinīs Tour of the Universe - book review
Does the Earth really wobble on its axis? How does the Sun make its heat? What would happen if I fell into a black hole? If you want to know the answers to these and many other questions, this book is a good collection of the things that people have asked "Merlin."
How much do people know about our next-door neighbor the Moon? For example, does the full moon drive people crazy? Apparently not - unless maybe they're astronomers trying to observe faint nebulae. Here are ten common moon myths and lunar lapses.
NASA Helped Rescue Chilean Miners
In the Chilean winter of 2010 thirty-three miners were trapped half a mile below the surface. They were in a hostile environment, a confined space, reliant on supplies from outside - similar to the problems of a space mission. Find out how NASA's decades of experience helped the Chilean rescuers.
Night Sky Olympic Tribute
Planet Earth presents a grand international sporting spectacular every four years, the Olympic Games. Even if you're not fond of sports, it's a majestic pageant and a set of unfolding dramas that a scriptwriter couldn't hope to emulate. Here is my astronomical tribute to this magnificent saga.
Royal Greenwich Observatory Photography 2010
An ancient tree is young compared to the center of the Galaxy. The Sun shines through dark clouds as a perfect ring in an annular eclipse. These are two of the dazzling images in the Astronomy Photographer of the Year competition 2010. You can see the exhibition online.
These articles contain a wide selection of astronomical information, but each is based around a seasonal or topical theme.
Tales of the Northern Lights
The aurora is an ethereal, shifting light in the northern sky and is associated with many tales and beliefs. It can look like the dawn, so Galileo named it after Aurora goddess of the dawn. It has reminded others of dragons, spirits, dancers, shield maidens, herrings or the legendary fire fox.
The Blufferīs Guide to the Cosmos - book review
Here is an entertaining overview of astronomy small enough to put in your pocket. Not only the Big Bang, black holes, exploding stars, visiting Mars and all the rest of the cosmos, but plenty of laughs along the way. I enjoyed it - you must know someone who would too.
Top Astronomy Stories 2012
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?
What's in a Name
Things aren't always what they seem. Many discoveries aren't named for - or by - their discoverers. Halley didn't discover Comet Halley. Kuiper said the Kuiper Belt didn't exist. The Herschels called Uranus "the Georgian planet" after George III of England, but no one else did.
Who Let the Dogs out? Astronomy Homepage | Editor's Picks Articles | Top Ten Articles | Astronomy Site Map
Someone must have left the door open, because the skies are full of dogs. You can see the dogs of Orion and the hunting dogs of the shepherd Bootes in pursuit of the Great Bear. There is also the Running Dog Nebula and the memory of poor Laika, the first cosmonaut, who perished in space.
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