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An undated artistic rendering shows an asteroid or comet striking near the Moon's south pole about 3.8 billion years ago, an impact that carved out two large craters. Lunar and Planetary Institute/Daniel D. Durda/Handout via Reuters
The probability that an asteroid could collide with Earth on Dec. 22, 2032, has been raised to 3.1 percent, according to NASA’s Jet Propulsion Laboratory.
The announcement was made as scientists continue to track the near-Earth asteroid designated as 2024 YR4. The asteroid is estimated to be about 130 to 300 feet wide and 180 feet in diameter.