When is the next ice age?

Winter sea ice cover has dropped to its ...

Mass extinctions and evolutionary leaps, from bacteria to Homo sapiens

PHOTO: SHUTTERSTOCK/VIKTORISHY 1 W e can dim the ...

They knew the weather would be bad. But the three-person film crew, in Antarctica to document emperor penguins for a BBC documentary, decided to press ahead. “We wanted to film in these conditions,” s

Explore the secret landscape concealed by the ice of this Arctic island nation

Mars once had vast oceans on its surface. Then its magnetic field weakened, its atmosphere thinned, and its water vanished. But the numbers don’t add up. For the Red Planet to have transformed from a