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Leo the Lion
Leo is a Zodiac constellation and its stars have represented a lion for over four thousand years. Leo contains one of the brightest stars in the sky and one of the dimmest, as well as a selection of spiral galaxies loved by amateur astronomers. And what was Regulus's dark secret?
Saturn Facts for Kids
Saturn is golden in the sky, and a telescope shows a ring system to take your breath away. If you could find enough water Saturn would float, and its moons are amazing. But if you don't like freezing weather, 1000-mph winds and lightning storms the size of continental USA, don't plan any visits.
In the Shadow of the Moon - film review
What would it be like to leave Earth's protective embrace and journey to an alien world? Only twenty-four men have ever experienced this - Apollo astronauts. "In the Shadow of the Moon" uses original footage & astronaut interviews to tell the story of one of the defining events of human history.
Absolute Beginners - Spring Skies
Days lengthen, flowers blossom and it's starting to get warmer. Even if your spring weather is late, daffodil-colored star Arcturus says it's spring. Use the Big Dipper to find Arcturus, Polaris the pole star, the constellation of Leo the lion, and a number of galaxies and nebulae.
Mars Facts for Kids
Mars has no little green men, but it's a fascinating place. It has a mountain three times the height of Everest and a deep valley that dwarfs the Grand Canyon. Although Mars has no liquid water on the surface, if the southern polar icecap melted, it could cover the planet 36 feet deep in water.
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.
Caroline Herschel was an intelligent young woman trapped in domestic servitude by her mother. Her brother William rescued her and trained her as a singer. After he discovered the planet Uranus, the two of them ended up forming a great partnership whose work revolutionized the study of astronomy.
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.
Aurorae - Polar Light Shows
There's a glow on the northern horizon. The Sun set hours ago and there are no city lights there. What's up? You could be seeing nature's great polar light show - an aurora. With solar activity on the rise, you might not have to go to the far north (or south) to see one.
Icarus at the Edge of Time - book review
Icarus flew too close to the Sun with wings of wood and wax. The wax melted and he fell to his death. Brian Greene's Icarus of the future flies too close to a black hole and finds that he should have paid more attention to Einstein.
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