Milky Way star with strange chemistry is from dwarf galaxy

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Astronomers have discovered a star in the Milky Way Galaxy with a chemical composition unlike any other star in our Galaxy. This chemical composition has been seen in a small number of stars in dwarf galaxies orbiting the Milky Way. This suggests that the star was part of a dwarf galaxy that merged into the Milky Way.
via Science Daily
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The space rock that hit the moon at 61,000 kilometers an hour

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Observers watching January's total eclipse of the Moon saw a rare event, a short-lived flash as a meteorite hit the lunar surface. Astronomers now think the space rock collided with the moon at 61,000 kilometers an hour, excavating a crater 10 to 15 meters across.
via Science Daily
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