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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 why isn't Regulus the star of summer anymore?
Lick Observatory - 10 Fascinating Facts
Lick Observatory lies high on a mountaintop overlooking Silicon Valley. Known for major contributions to astronomy, it also has some unusual features. Its benefactor James Lick is buried under one of the main telescopes and its original seismogram of the 1906 San Francisco earthquake is on display.
Life and Death of Massive Stars – Facts for Kids
Stars are all born in the same way, but they live and die in different ways. A star's mass rules how hot it will be, how long it will shine, and how it will end.
Life and Death of the Sun
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.
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!
Light Pollution – Facts for Kids
Thieves are stealing something that belongs to you. It's something you inherited from countless generations of your ancestors: a view of the night sky. The unnecessary lighting that hides it also damages wildlife, increases air pollution and can damage your health. What can we do?
Literary Moons of Uranus
Solar System moons are named from mythology. Except for Uranus - its moons are named from English literature, primarily Shakespeare. How did this come about and what is the connection with the moons of Saturn?
Imagine the horror: Something is eating the Moon, leaving its face covered in blood. This was how people once viewed lunar eclipses. Find out what actually causes a lunar eclipse, why the Moon may turn red during an eclipse, and where a lunar eclipse becomes a solar eclipse.
Lyra the Heavenly Harp
Music of the spheres? Here’s a harp to play it on: Lyra, the harp of Orpheus, that almost brought his beloved back from death. The constellation has one of the sky’s brightest stars, a star that is really four stars, and a colorful donut.
M1 Crab Nebula
Messier's catalog of nebulous objects begins with M1 the Crab Nebula. In 18th-century telescopes it was just a fuzzy patch, yet imaged by the Hubble Space Telescope, it's fascinating and intricate. But what is it? Why is it called the Crab Nebula? And what amazing secret does it hide?
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