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Saturn's Moon Rhea - Facts for Kids
Even being the Saturn's second biggest moon doesn't make Rhea very big. We could set three Rheas down on the USA and have room to spare. It whizzes around Saturn so quickly that a month is only four and a half Earth days long. It's so cold there that ice is as hard as rock.

Titan - Facts for Kids
Saturn's moon Titan is bigger than the planet Mercury. It's also the only moon with a thick atmosphere. In fact the atmosphere is so smoggy, we can't see the surface. How is Titan like Earth?

Saturn - Facts for Kids
Saturday is Saturn's day. Saturn, a god of ancient mythology, is the planet with the beautiful rings. For 13 years, the Cassini space mission studied Saturn, its rings and moons. Here are some facts about this fascinating planet.

Astronomy Photographer of the Year 2020
The winners of the 12th Greenwich Astronomy Photographer of the Year competition were presented online this year. There were two socially distanced presenters. Winners included close-up Andromeda, an ethereal aurora, colorful clouds, and a sad warning of what could be the end of astrophotography.

Europa - Facts for Kids
Jupiter's moon Europa seems to have a large ocean under its icy crust. Never mind Mars or Venus! Many scientists think that Europa would be a good place to look for life.

Uranus and Neptune - Twin Planets
Uranus and Neptune are twin planets, but they aren't identical twins. For example, Uranus orbits lying on its side, and Neptune has the strongest winds in the Solar System.

Jupiter - Facts for Kids
King of the Roman gods, comet-killer, two and a half times the mass of all the other planets put together, shortest day of any planet in the Solar System. It's Jupiter! Find out more.

Vesta - Facts for Kids
NASA's Dawn mission spent 14 months orbiting the asteroid Vesta. Vesta's an unusual object, too small to be a dwarf planet. Yet it has the Solar System's tallest mountain, and canyons as big as Earth's Grand Canyon. And it may help scientists to understand the early Solar System.

Oort Cloud - Facts for Kids
Where do comets come from? The Oort Cloud is home to a trillion comets at the edge of the Solar System, nearly half way to the next star. Sometimes they get kicked out and sometimes they come to visit the inner Solar System.

Mars as big as the full Moon on August 27 ?
Social media keep promoting an event in which we'll see two moons in the sky on August 27th. The second “moon” will actually be Mars, seemingly the same size as the full Moon. No one alive today has ever witnessed it and it won't happen again until 2287.

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