News tagged with ice caps

Melting Arctic ice cap at record

With Arctic ice cap at record low this summer, University of Calgary geography professor John Yackel predicts serious consequences for the planet.

Sep 24, 2012
3.7 / 5 (6) 1

Strange Martian Spirals Explained

Almost 40 years ago, NASA's Mariner 9 spacecraft relayed to Earth the first video images of Mars' northern polar ice cap, revealing a strange pattern of spiral swirls that has puzzled scientists ever since. ...

Jun 16, 2010
4.4 / 5 (12) 5 | with audio podcast