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Closest far-moon of 2017 today | | Today's moon reaches its most distant point from Earth for the month. Astronomers call this point an "apogee" of the moon. This month's apogee is closer than any other in 2017. | | |
A really big asteroid is about to pass Earth | | It's several miles in diameter, the biggest near-Earth object to pass so close in a century. It'll pass on September 1 at 18 times the Earth-moon distance. Charts - and links to online viewing - here. | | |
Earliest flying mammals discovered | | Two 160 million-year-old fossils discovered in China are the oldest known mammal gliders. “These Jurassic mammals are truly ‘the first in glide.’” | | |
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