Washington: NASA has announced that a small asteroid, called 2014 RC, will safely pass very close to Earth on Sunday. Astronomers have estimated that the asteroid is about 60 feet (20 metres) in size .
Using a computer simulation model based on a moon crater, planetary scientists have revealed that early Earth is likely to have been hit by giant asteroids capable of killing off life and completely resurfacing the planet.
A new study has revealed that dinosaurs were killed by a series of changes in the climate and environment such as changing sea levels, varying temperatures and extensive volcanic activity that ultimately created a perfect storm.
Whenever an asteroid or a comet hit the earth in the past, the impact melted tonnes of soil and rock, some of which formed glass as it cooled. Now, a thrilling discovery has found that these impact glasses stored the signatures of ancient life at the time of the impact.