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Titan - Planet-sized Moon of Saturn
Titan was a mystery for three and a half centuries. It's a giant moon shrouded in impenetrable clouds, and has only recently begun to share its secrets. Why do scientists say it's like Earth? Is it time to book a vacation to visit the lakes and mountains of Titan?
Titan Facts for Kids
Saturn's moon Titan is bigger than a planet. It's the only moon with a thick atmosphere. In fact the atmosphere is so smoggy, we can't see the surface. But the Cassini-Huygens mission has found out many of its secrets, including lakes and sand dunes and maybe volcanoes.
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?
Top Ten Astronomy Stories of 2013
What were the big astronomy events of 2013? Here are my top ten choices and they include a big bang over Russia, a Moon goddess and Jade Rabbit, a telescope in the high Andean desert to look for the first galaxies, and the launch one of the most ambitious space missions ever.
Transit of Venus - Captain Cook 1769
How big is the Solar System? 18th century astronomers tried to find out by sending expeditions around the world to measure a transit of Venus. One of these was Captain Cook's voyage to Tahiti. He went under the auspices of the Royal Society, but he carried secret orders from the government.
Transit of Venus - Measuring the Solar System
On June 8, 2004 millions of people witnessed an event that no one still alive had ever seen: a transit of Venus. Another occurred in June 2012, but it was the last for over a hundred years. What is a transit of Venus? How did it help to work out out the size of the Solar System?
One of the greatest astronomers of all time was a Danish nobleman with a metal nose, who was also a publisher, an alchemist and the Imperial Mathematician. His astronomical observations were the key to the modern view of the Solar System.
Uranus and Neptune - Twin Planets
Uranus and Neptune are ice giants and twin planets. They are very similar in many ways, but they aren't identical twins. For example, Uranus orbits lying down and Neptune is much warmer than it should be.
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.
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