Ancient water = ancient habitat?

Pools of water in a Canadian mine are 1+ billion years old!

Geologic dating shows that water has been trapped more than 2 kilometers underground since before the Cambrian explosion. This water contains chemicals that support bacteria in other places. Could the deep biosphere contain relics of the most primitive life? Could such life exist on Mars? More »

A new iron age?

Making iron and steel without so much greenhouse pollution

Smelters refine aluminum ore, but not iron ore, with electricity. A new electrolytic process for refining iron ore could save vast amounts of greenhouse gases. More »

Science Teachers: Hip yourself to a great resource!

Teaching the science standards? Looking for extra-credit projects?

Amphibian anxiety

Study raises more concerns on frogs, toads, salamanders

Amphibians are disappearing faster than any other animals. A new study looks at the effects of changes in climate, land use and disease. The picture isn't pretty, but looking at three threats at once shows the true danger facing frogs, toads, salamanders and their relatives. More »