On Thursday 12 October an asteroid the size of a house will be watched carefully by astrophysicists as it hurtles "damn close" to Earth.
However, 2012 TC4 traveled out of the range of asteroid- tracking telescopes shortly after it was discovered.
Scientists found this asteroid about five years ago when it had been at the twice the current distance away from the Earth before disappearing view.
This "test" of what has become a global asteroid-impact early-warning system is a volunteer project, conceived and organised by asteroid observers and supported by the NASA Planetary Defense Coordination Office (PDCO). "Not even for satellites". He informed that their research team has been observing TC4 for two months, so they have very accurate position information about it which will help them obtain very precise calculations of its orbit.
Many scientists believe that the dinosaurs were wiped out by an asteroid. So, it's the small asteroids that are hard to track and are unsafe for our planet. 2012 TC4 is also not close to the geostationary satellites deployed to boost the communication and navigation systems on Earth. For example, in 2013, a meteoroid, similar to the size of TC4, exploded in the atmosphere over Chelyabinsk in Russian Federation and the resulting shockwave blew out the windows of almost 5,000 buildings and injured more than 1,200 people.
As of now, it has been predicted that the earth faces no major asteroid impact threat for the next 100 years, which should a relief for those looking for space-based conspiracy theories.
But still, there are millions in space which are not traced yet. It then reemerged in July on a trajectory well inside our lunar orbit.
It is expected to swing around again in 2050 and 2079 as it continually loops the Sun.