What made the 1908 Tunguska event in Siberia highly unusual for a major cosmic impact?
Chapter 1

Leftovers of cosmic creation

Chapter 2

Cosmic visitors and Earthly impacts

Chapter 3

Human missions to touch the stars

Chapter 4

The future of space rocks

YOUR GOAL

Master of Comets and asteroids

Ch 2 · Cosmic visitors and Earthly impacts
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artiteacher Surviving the fall to Earth

Jul 11

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artiteacher Cosmic visitors and Earthly impacts

Ancient dust from Bennu's quiet cosmic dome, Brings the salty seeds of life to find an earthly home.

Jul 10

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artiteacher The day the dinosaurs died

Jul 11

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Surviving the fall to Earth

artiteacher Space rocks undergo a dramatic name change depending on where they are located.

Jul 10

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The mysterious Siberian blast

artiteacher In 1908, a powerful cosmic airburst flattened millions of trees in Tunguska, Russia.

Jul 10

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Cosmic Dust Drops
BETA

artiteacher Catch falling space dust to discover how comets act as cosmic time capsules.

Jul 10

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Fun Fact

Antarctic meteorites: Antarctica is the best place to find meteorites because dark space rocks stand out clearly against the white ice.

Jul 10

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Glossary
meteorite (noun)
A solid piece of debris from a celestial body that survives passage through the atmosphere to reach Earth's surface. In 2013, a massive space rock exploded over Chelyabinsk, Russia, leaving behind numerous meteorite fragments.

Jul 10

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Gossip

Would you ever go on an expedition to hunt for meteorites?

Jul 10

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Quiz

What is a space rock called after it successfully survives the atmosphere and lands on Earth?

Jul 10

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artiteacher The mysterious Siberian blast

Jul 11

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Quiz

What made the 1908 Tunguska event in Siberia highly unusual for a major cosmic impact?

Jul 10

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artiteacher A warning crash on Jupiter

Jul 11

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Quiz

Which planet did Comet Shoemaker-Levy 9 crash into in 1994, showing the power of cosmic impacts?

Jul 10

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Quiz

What rare element found in asteroid dust helped scientists prove an asteroid killed the dinosaurs?

Jul 10

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Quiz

Where on Earth did the dinosaur-extinguishing asteroid strike 66 million years ago?

Jul 10

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Quiz

Which US state contains the famous, well-preserved Barringer Crater created by an iron-metallic asteroid?

Jul 10

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Quiz

Why is the continent of Antarctica considered a goldmine for scientists hunting meteorites?

Jul 10

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Quiz

What is the common term for a meteor burning up in Earth's atmosphere?

Jul 10