Firsts in Space – Quiz
We walked on the Moon. Rovers explore Mars. The International Space Station has been continuously inhabited since 2000. We're in contact with the world and the cosmos via satellite. We take it for granted, but there had to be a first time for everything. How many of these space firsts do you know?
Charles Messier – Comet Ferret
The Crab Nebula is M1 and the Andromeda Galaxy is M31. Over a hundred deep-sky objects with "M" numbers are listed in the Messier Catalogue. Charles Messier, 18th-century comet hunter, is known today less for his comets and more for his catalog of things that aren't comets.
The Moon - Quiz
The Moon has been the object of awe and fascination since our humanoid ancestors first looked up into the sky. Test your knowledge about Moon and maybe find out some interesting new facts about it.
Enceladus – 10 Amazing Facts
Saturn's moon Enceladus is a strange one. There are eruptions of cold volcanoes. This adds “snow” to a surface so bright it reflects 99% of the Sun's light, and supplies particles to maintain one of Saturn's rings. And does the moon harbor life in the salty ocean that lies under the ice?
Voyager 2 - The Grand Tour
Most of our knowledge of Neptune and Uranus is based on Voyager 2's visits. Its grand tour of the four giant planets used a rare alignment of the planets that let the gravity of each one boost the spacecraft to the next one. No other probe has been to either of the ice giants.
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