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Uranus Facts for Kids
This ice giant is twenty times farther from the Sun than we are. It orbits lying on its side so that half the planet can be dark for over twenty years at a time. This is the planet Uranus, discovered by William Herschel in 1871 and nearly named George!
Venus Facts for Kids
It's the planet most likely to mistaken for a UFO. It spins backwards on its axis. A day is longer than a year. It's Venus! Some call it Earth's twin, but I think you'll see that we don't have all that much in common.
Volcanoes - Fire and Ice
A volcano can produce a fiery sky with ash and deadly gases. The biggest one on Earth is Mauna Loa, but it's dwarfed by Olympus Mons on Mars which is three times the height of Everest. There are many volcanoes in the Solar System, including ice volcanoes.
Voyager 1 – Gas Giants and a Last Look Homeward
When a rare planetary alignment opened up the outer Solar System, Voyager 1 was sent forth. It observed the gas giants Jupiter and Saturn and their moons. At nearly 4 billion miles from the Sun, the probe turned and took one last picture of home before continuing its journey to the stars.
Voyagers - Preparing for the Grand Tour
In 2013 Voyager 1 became the first starship as it slipped into interstellar space, the space between the Sun and the stars. What was a NASA probe doing twelve billion miles from home? What was the origin of its 36-year mission?
Voyagers - the Golden Record
The Voyagers are on a mission that will eventually take them to the stars. They are both carrying a message from Earth. What images, sounds and music were chosen to represent the people of Earth?
Water on the Moon
Everybody had known for a long time that the Moon was bone dry. In the nineties probes found some evidence of water. After a big announcement of water on the Moon, it went back again to being described as dry. What's the story in the 21st century?
What Are Constellations
Stories of gods and mortals, love and betrayal, monsters and heroes. They all adorn the night sky in the form of constellations. These star groups have also served as calendars, navigation aids and internationally defined areas of the celestial sphere.
What Herschel Found in a Dark Cloud
What's hiding within an impenetrable dark cloud in the constellation of the Eagle? A stunning stellar nursery. Find out how the Herschel Space Observatory was able to photograph it.
What Is a Galaxy
What is a galaxy? A great star system held together by gravity, with stars, gas and dust, black holes and dark matter. Astronomers used to think our Galaxy was the whole universe. But now that we know of billions of galaxies, they're considered to be the building blocks of the universe.
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