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Articles on Outer space

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Pluto, the largest of the dwarf planets. This image was taken by NASA’s New Horizons spacecraft. NASA/JHUAPL/SwRI

What is a dwarf planet?

The dwarf planets in our Solar System are cold, dark, far away and full of surprises.
It can stretch your mind to ponder what’s really out there. Stijn Dijkstra/EyeEm via Getty Images

Does outer space end – or go on forever?

Astronomers know a lot about what’s in outer space – and think it’s possible it never ends.
Artist’s rendition of NASA’s 2020 Mars rover collecting rocks with its robotic arm. NASA

Meteorites from Mars contain clues about the red planet’s geology

Martian meteorites allow scientists here on Earth to decode that planet’s geology, more than a decade before the first missions are scheduled to bring rocks back home from Mars.
Surface detail of the Tomanowos meteorite, showing cavities produced by dissolution of iron. Eden, Janine and Jim/Wikipedia

Tomanowos, the meteorite that survived mega-floods and human folly

Tomanowos, aka the Willamette Meteorite, may be the world’s most interesting rock. Its story includes catastrophic ice age floods, theft of Native American cultural heritage and plenty of human folly.
Nobody knows for sure - but it’s possible. Shutterstock

Curious Kids: Are there living things on different galaxies?

There are probably more than a million planets in the universe for every single grain of sand on Earth. That’s a lot of planets. My guess is that there probably is life elsewhere in the Universe.
The other galaxies are there, but they are hiding a very long way away. www.shutterstock.com

Curious Kids: Where are all the other galaxies hidden?

We are in the Milky Way. If you travelled on an extremely fast spaceship for more than two million years, you would reach our neighbour, the Andromeda galaxy. All other galaxies are even further away.

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