Dhaka, Aug 30 (UNB) - Large asteroids are considered to be a concern when they come near our planet. These celestial objects orbit the Sun and at times they tend to come too close to the Earth. Now, two giant asteroids are set to fly close to the Earth on September 14. Earlier this month, NASA warned about asteroid 2000 QW7, which is the size of the Burj Khalifa, that is set to whiz past our planet at a speed of 23,100 km per hours on September 14. It seems that this asteroid won’t be the lone one we have to deal with on that day, reports The Indian Express.