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Get your telescopes ready, people: asteroid 2010 WC9 will be flying by Earth at the terrifying speed of 28,655 miles per hour this Tuesday at 6:05 p.m. EDT. The WeekFacts.com reported about the space rock on last Saturday. It's passing closer than large asteroids typically do, but remember, when you're talking about space, "close" is a relative term.

Eight years ago, astronomers lost a near-Earth asteroid. The limited observations at the time did not allow its orbit to be well defined until it was observed in recent days, nearly eight years later.

A big asteroid is due to dart past Earth on Tuesday, coming at about half the distance between our planet and the moon.

However, this time, it's about a different space rock.

This might seem like a long way away from us, but it is actually one of the closest known approaches of an asteroid of this size.

Unfortunately, the asteroid will not light up brightly enough to be visible to the naked eye, but small telescopes could aid you in the endeavour. The asteroid measures between 197 and 427 feet in diameter.

According to Fox News, 2010 WC9 was first spotted in November 2010 by the NASA-backed space project Catalina Sky Survey, but was then lost for several years, only to be rediscovered on May 8.

An asteroid similar to the one illustrated here was first discovered in 2010 and will pass between Earth and the moon on Tuesday.

"The air will continue less than 25 minutes, because the Asteroid will cross our field of view in this period of time". The asteroid will be moving quite rapidly (30 arcseconds per minute). London, England's Northolt Branch Observatories began live-streaming its approach at about 7 PM on May 14. We are of course collecting astrometric data whilst this is happening, but the motion of the asteroid will be apparent every five seconds!

As NBC's David Freeman writes, asteroids of 2010 WC9's size shouldn't be too much cause for concern as they're only thought to make contact with our planet just once every 6,000 years.