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Mars Facts for Kids
Mars has no little green men, but it's a fascinating place. It has a mountain three times the height of Everest and a deep valley that dwarfs the Grand Canyon. Although Mars has no liquid water on the surface, if the southern polar icecap melted, it could cover the planet 36 feet deep in water.
Mars Myths – Would You Believe Them
Which famous astronomer kept seeing canals on Mars, even when they couldn't be seen with the world's biggest telescope? What was the tragic outcome of a fictional invasion from Mars? Is NASA hiding evidence of an ancient Martian civilization? Does Mars ever look as big as a full Moon?
Mary Somerville and the World of Science – book
Mary Somerville was an exceptional individual. Although self-educated and - as a woman - barred from membership in scientific societies, her books sold well and were used as textbooks for many decades. Allan Chapman relates her achievements to the context of 19th century science in Britain.
Mercury Facts for Kids
Since Pluto became a dwarf planet, Mercury is the baby of the planets. It's close enough to the Sun for lead and zinc to melt during the day. Yet there is frozen water at the poles. Before space probes came along Mercury was a mystery hidden in the Sun's glare, but that's changed.
Merlin's Tour of the Universe - book review
Does the Earth really wobble on its axis? How does the Sun make its heat? What would happen if I fell into a black hole? If you want to know the answers to these and many other questions, this book is a good collection of the things that people have asked "Merlin."
Meteor or Meteorite and Other Posers
What's the difference between a meteor, a meteorite and a meteoroid? Is one of them the same as a shooting star? And what about asteroids and planetoids - which one is a minor planet? If any of these terms have puzzled you, here is a guide to help you out.
Meteor Shower - The Perseids
When August comes around, the best sky show of the year is also on its way. The Perseids are an annual meteor shower. What's it all about and how can you see it?
Meteors and Meteorites – Facts for Kids
What's the difference between meteors and meteorites? And what is a meteoroid? Are they different from shooting stars, falling stars and fireballs?
Milky Way - Facts for Kids
We live in the Milky Way galaxy. When we look up at the sky all the stars we see are part of the Milky Way. But did you know that most of the Galaxy is made of mysterious, invisible dark matter and that there’s an even darker secret at its heart?
Milky Way - Our Galaxy
The Milky Way is a giant spiral galaxy. Along with our neighboring giant Andromeda Galaxy, it dominates the Local Group of galaxies. But where are we in the Galaxy? Why do astronomers think that 95% of the Galaxy is mysterious dark matter? And what is lurking at the heart of the Milky Way?
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