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What Are The Chances Of A Planetary Collision? Writing in the journal Nature this week, scientists present scenarios in which Mercury, Venus or Mars could collide with the Earth during the next 5 billion years. Astrophysicist Greg Laughlin discusses these possibilities and why there's no need to panic yet.

Space

What Are The Chances Of A Planetary Collision?

Heard on Talk of the Nation

What Are The Chances Of A Planetary Collision?

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Writing in the journal Nature this week, scientists present scenarios in which Mercury, Venus or Mars could collide with the Earth during the next 5 billion years. Astrophysicist Greg Laughlin discusses these possibilities and why there's no need to panic yet.