Asteroid Set to Whisk by Earth on Halloween - NBC4 Washington
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Asteroid Set to Whisk by Earth on Halloween

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    This artist's rendering provided by the Harvard-Smithsonian Center for Astrophysics shows an asteroid slowly disintegrating as it orbits a white dwarf star. On Saturday, Oct. 31, 2015, an asteroid dubbed 2015 TB145 will come within about 300,000 miles of Earth.

    Look up in the sky! No, it's not the Great Pumpkin.

    A large asteroid that scientists only discovered this month will make a relatively close approach to Earth on Saturday, astronomers say, providing one of the best opportunities in years to gather data about a passing space rock.

    The asteroid, estimated to be about 1,300 feet in diameter, will shoot past the planet at 22 miles per second at around 1 p.m. on Halloween afternoon. Known as 2015 TB145, it will come within about 300,000 miles of Earth, farther away than the moon but relatively close by cosmic measures.