3 Asteroids, Including One Bigger than the Washington Monument, to Fly Past Earth on Christmas Day
Fox News - Three asteroids, including one that's larger than the Washington Monument, are set to safely fly past Earth on Christmas Day, according to NASA's Center for Near-Earth Object Studies.
The largest space rock, known as asteroid 501647 (2014 SD224), is slated to come within 1.9 million miles of Earth and is thought to have a diameter as great as 689 feet. At its size and distance, it is considered a "potentially hazardous" Near-Earth Object (NEO), but it poses no threat to the planet when it zips past later this week.
"Potentially hazardous" NEOs are defined as space objects that come within 0.05 astronomical units and measure more than 460 feet in diameter, NASA explained. According to a 2018 report by Planetary.org, there are more than 18,000 NEOs.....READ MORE
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