Is 'Planet X' responsible for mass extinctions on Earth?
The yet undiscovered 'Planet X' may trigger comet showers linked to mass extinctions on our planet, say researchers.
Apr 04, 2016, 18:35 PM IST
Comet, asteroid showers caused earlier mass extinctions
A team of researchers has blamed comet and asteroid showers for the mass extinctions occurring over the past 260 million years.
Dec 26, 2015, 12:48 PM IST
Extinction key to vertebrate diversity: Study
Periods of high extinction on Earth, rather than evolutionary adaptations, may have been a key driver in the diversification of today’s dominant land vertebrates, including reptiles, birds, and mammals, suggests new research.
Nov 25, 2015, 18:25 PM IST
Mass extinctions hit large vertebrates hardest
For animals, being huge comes at a price as a new study has found that mass extinctions don't favor large vertebrates.
Nov 14, 2015, 00:32 AM IST
Devastating comet to hit Earth in next 20 years, claims best-selling author
Graham Hancock, the best-selling author has claimed that a devastating comet – big enough to end life as we know it - is hitting the Earth in next 20 years.
Sep 11, 2015, 16:56 PM IST
