News tagged with northern hemisphere

Weather forecasts on Mars

(Phys.org) —In the north of the red planet snowfalls occur with great regularity. Expeditions of Mars rovers into this region could therefore be easily planned.

May 08, 2013
5 / 5 (2) 0 | with audio podcast

How the ice ages ended

A study of sediment cores collected from the deep ocean supports a new explanation for how glacier melting at the end of the ice ages led to the release of carbon dioxide from the ocean.

May 01, 2013
4.5 / 5 (24) 48 | with audio podcast

How a sunset comet came to be

(Phys.org) —For a comet, visiting the sun is risky business. Fierce solar heat vaporizes gases long frozen in the fragile nucleus, breaking up some comets and completely destroying others.

Mar 18, 2013
5 / 5 (2) 0 | with audio podcast

Caves point to thawing of Siberia

Evidence from Siberian caves suggests that a global temperature rise of 1.5 degrees Celsius could see permanently frozen ground thaw over a large area of Siberia, threatening release of carbon from soils, ...

Feb 21, 2013
3.6 / 5 (10) 8 | with audio podcast