Makar Sankranti has a strong scientific foundation rooted in astronomy and seasonal change. It marks the day when the Sun ...

19. The largest known prime number contains 41,024,320 digits. 20. Frogs breathe and drink through their skin. 21. A bullet ...

For every bird that becomes a pampered internet star, countless others are snatched from the wild to feed the illegal global ...

Revolutionary-era smallpox, the still-mysterious ignition of the Black Death, a modern measles outbreak shaped by community identity and distrust, and the promise of genetics to build safer drugs—a ...

Author Matt Greene on his new dystopian novel 'The Definitions' about life after a virus wipes people's memories.