An asteroid more than 1,000 feet wide is going to pass by earth. But you need not to worry as it would not pose any threat to our planet. Nicknamed as 'Beast', its official name is Asteroid 2014 HQ124.

It will pass within a million miles on Sunday. On April 23, the asteroid was detected by the NASA Wide-Field Infrared Survey Explorer. One of the things that are quite startling about this asteroid is its giant size. It is around 325 meters of width.

"HQ124 is at least 10 times bigger, and possibly 20 times, than the asteroid that injured a thousand people last year in Chelyabinsk, Siberia", said Bob Berman, Slooh space astronomer.

Though it is not going to have an impact on earth, if it would have then its energy would have been measured in mega-tons. American physicist Mark Boslough said depending on its size, the explosion by it would lead to release of energy of around 2,000 mega-tons. It is enough to create havoc in a metropolitan area.

Experts differ while expressing the asteroid's size. Berman said the object was the size of a movie theatre, but NASA called it to be the size of a bus and other experts compare it the field of football ground. As per experts, the asteroid is coming through space at 31,000 miles per hour.

It is not usual to view a scene when such a giant sized asteroid passes by earth. Some researchers call it a once in a lifetime opportunity. Slooh's community observatory online will be live webcasting the event when the giant sized asteroid will pass by earth.