Nasa space telescope finds evidence of two worlds colliding thousands of years ago

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A Nasa space telescope has found evidence of a high-speed collision between two forming planets orbiting a young star.

Astronomers say the cosmic pile-up is similar to the one that formed our Moon some four billion years ago, when a Mars-sized object crashed into Earth.

Telltale plumes of vaporised rock and lava leftover from the collision which happened a few thousand years ago were picked up by the telescope.

The details are to be published in the Astrophysical Journal.

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