An asteroid will flyby the Earth on Saturday, March 9, less than 7 days after it was discovered.

The asteroid is the size of a city block and has been dubbed 'NEO' (near-Earth Object) 2013 ET. It was discovered on March 3, 2013, by the Catalina Sky Survey.

The asteroid making the flyby is approximately 210-460 feet wide and will pass 2.5 times the moon's distance from Earth.

The asteroid is expected to make its flyby 11.88 km/sec, or 26,552 mph.

At its maximum brightness on March 9, NEO 2013 ET will be relatively dim, meaning it won't be bright enough to view through the naked eye or even a personal telescope. It is expected to be bright enough to see via the Slooh telescopes in the Canary Islands.

If asteroid 2013 ET were to hit earth, the damage would potentially destroy a city.

Although there is no danger of this detected asteroid hitting Earth, undetected objects can strike Earth without warning. A recent example of the phenomenon was the meteor explosion over Russia last month.

The asteroid that caused the Feb. 15 Russian fireball detonated in Earth's atmosphere before scientists knew of its existence.

The Slooh Space Camera will be recording the asteroid's approach on Saturday starting at 12:15 pm PST/3:15pm EST on Saturday, March 9.

It will be broadcast live on Slooh.com, free to the public, and accompanied by real-time discussions with Slooh president Patrick Paolucci, Slooh engineer Paul Cox and documentary filmmaker Duncan Copp.

Paolucci said, "We only have a short viewing window of an hour or so from our Canary Islands observatory on March 9^th, but we wanted to give the general public a front row seat to witness this new asteroid in real time as it passes by Earth.

Viewers can watch the program on their computers or on iOS/Android mobile devices.