Can Humanity Stop A Planet-Killing Asteroid?

Kurzgesagt – In a Nutshell • 2025-09-16T14:00:03Z • 12:44 • intermediate • Science

Lead

What if a giant asteroid was hurtling towards Earth? Discover the fascinating science and potential solutions to stop a planet-killing asteroid in this eye-opening video!

Video

Quiz

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Q1. What size was the asteroid OK that was discovered just one day before it grazed Earth?

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Q2. What is the main problem with current methods to deflect asteroids?

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Q3. What innovative tool do scientists propose to destroy asteroids?

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Q4. What is the estimated speed at which a comet can travel?

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Q5. What is the proposed method to deal with a planet-killing comet?

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Vocabulary

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asteroid

/ˈæstəˌrɔɪd/

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Definition

A small rocky body orbiting the sun, typically found in the asteroid belt between Mars and Jupiter.

Example

Scientists are constantly monitoring the asteroid belt for any potential threats to Earth.

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penetrator

/ˈpɛnɪˌtreɪtər/

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Definition

A device designed to penetrate a surface, often used in military or scientific contexts.

Example

The penetrator was designed to drill deep into the asteroid's surface to deliver a nuclear payload.

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devise

/dɪˈvaɪz/

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Definition

To plan or invent a complex procedure, system, or mechanism.

Example

The engineers needed to devise a new strategy to deflect the incoming asteroid.

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pulverize

/ˈpʌlvəˌraɪz/

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Definition

To reduce to fine particles or powder by crushing or grinding.

Example

The impact of the penetrator would pulverize the asteroid into smaller, less dangerous fragments.

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apocalypse

/əˈpɑːkəˌlɪps/

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Definition

A catastrophic event resulting in widespread destruction and devastation.

Example

The scientists feared that a collision with a planet-killer asteroid could lead to an apocalypse.

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fragments

/ˈfræɡmənts/

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Definition

Small parts broken off from a larger object.

Example

After the explosion, fragments of the asteroid scattered across the sky.

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