Dr. Joseph Nuth of NASA's Goddard Space Flight Center urges NASA to prepare an interceptor rocket in the event of an asteroid or comet having a close or near-miss encounter with Earth.
Researchers previously thought that the mass extinction that wiped out the dinosaurs did not affect the creatures in the Antarctic to that extent.
Recent research found that the evolution of animals led to the earth's first mass extinction, rather than a meteorite or super volcano.
In spite of being the most populous as well as rapacious species, a momentous event can still erase humans from the planet, say scientists.
Scientists warn that the earth's sixth mass extinction is here, with animals dying out at a 100 times the normal rate.
A new study warns that only rapid intervention by reversing climate change and preventing extinction of species, can save life as we know.
