Astronomers say it may be space junk or it could be a tiny asteroid, too small to cause damage even if it hit. It's 33 to 50 feet wide at most.
NASA says that on Wednesday at 7:47 a.m. EST, it will streak by, missing Earth by about 80,000 miles. In the western United States it may be bright enough to be seen with a good amateur telescope.
[Associated
Press]
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