Massive asteroid could devastate Earth in the future, scientists say.
An asteroid strike will have a disastrous effect on Earth and can wipe out major cities, experts warn.
The rumored collision that was expected to happen two days ago did not actually happen.
"2012," "The day after tomorrow," "Deep Impact," "San Andreas" and the list goes on.
What may have been a potential asteroid collision luckily turned out to be just a near miss.
NASA formalized the PDCO for early detection of asteroid collision and prevention of Armageddon.