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Planetary science

Death by asteroid may come in unexpected ways

Death by asteroid may come in unexpected ways

Author: Thomas Sumner / Source: Science News for Students asteroid breakup Every now and then a really big rock from space comes careening through Earth’s atmosphere. Depending on its size, angle of approach and where it lands, few people may notice — or...

Here’s how an asteroid impact would kill you

Here’s how an asteroid impact would kill you

Author: Thomas Sumner / Source: Science News DEATH FROM THE SKIES Computer simulations reveal that most of the lethality of an earthbound asteroid (illustrated) comes from gusting winds and shock waves. It won’t be a tsunami. Nor an earthquake. Not even the...

How Earth got its moon

How Earth got its moon

Author: Thomas Sumner / Source: Science News for Students full moon The story of our moon’s origin does not add up. Most scientists think that that the moon formed in the earliest days of our solar system. That would have been back around 4.5 billion years...

It’s time to redefine what qualifies as a planet

It’s time to redefine what qualifies as a planet

Author: Ashley Yeager / Source: Science News PLANET OR NOT? A group of planetary scientists label Pluto and many other orbs in the solar system as planets, despite the definition set down by the International Astronomical Union in 2006. Pluto is a planet. It...

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