The earth beneath Karachi continues to stir, not with a roar but with a series of unnerving shivers. Nineteen tremors in less than four days, the strongest a modest magnitude 3.6. It is not a disaster ...

By Kristine Sabillo Researchers have released new maps documenting the “Great Nile Migration,” the Earth’s largest-known land ...

Google Earth photo captured a hill formation in Sudan that bears a striking resemblance to human lips. Not much is known ...