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It’s official! An interstellar object is visiting our solar system

EarthSky
Summary
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77% Informative

The newly discovered space rock, now named 3I/ATLAS, could be as large as 12 miles ( 20 km ) in diameter.

The object’s trajectory indicates it didn’t originate inside our own solar system.

It will get its closest to the sun at about 2 astronomical units (AU), or twice as far as Earth is from the sun in October .

Current indications are leaning toward it being a comet or asteroid.

Citizen scientist Sam Deen has found earlier observations of from June 25-28 , from the ATLAS telescope.

With an eccentricity near 10 , this is like nothing seen before.

It's likely a comet that’s speeding toward the sun and should make its closest approach in October 2025 .

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72

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semi-formal

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English

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43

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short-lived

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20

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