A vanished glacier with a mysterious calling card suggests Mars went through many ice ages in its very recent past. A fresh look at images from the Mars Reconnaissance Orbiter indicates thick glaciers may have existed in the past 100 million years in the planet's equatorial region, but vanished after planetary wobbles changed the climate in certain areas. picked by AutumnLotus 5 months ago

About 70 years ago, pioneer aerial photographer Bradford Washburn flew over Alaska's glaciers, documenting their splendor.

Now see how those same glaciers look today after suffering global warming picked by 2manyusernames 2 years ago

An unusual series of slow-moving magnitude-7 ice-quakes have been occurring twice a day in Western Antarctica. Generally such a strong earthquake would level towns, but these aren't even noticeable due to their slowness. Discovering the cause for such quakes would result in a better understanding of glaciers and they way they'll react to climate change.

We at plime already know the cause. picked by 2manyusernames 3 months ago

Do you want to go farther south than Florida for your mid-winter getaway? Consider Antarctica, where temperatures rise above the freezing point in December. You'll see penguins in their natural habitats, and the massive glaciers mean you don't have to pack your bathing suit... picked by ybne1else 2 years ago

A probable active glacier has been identified for the first time on Mars. The icy feature has been spotted in images from the European Space Agency's (Esa) Mars Express spacecraft. Ancient glaciers, many millions of years old, have been seen before on the Red Planet, but this one may only be several thousand years old. picked by AutumnLotus 9 months ago