Leaders of industry, science, journalism, politics, and sustainability converge on Wednesday, March 26 in Colorado for the first Aspen Environment Forum.

In the past, desalination relied on boiling the water. But today’s newer techniques use a semi-permeable membrane. Read more about drinking seawater.

Does some wine taste better just because it costs more? Scientists held a wine tasting inside an MRI scanner to find out.

This object called SDSSJ0946+1006 is the first-ever double 'Einstein ring.' It looks like a double ring around a bright center. There are thought to be three objects here - a distant galaxy that warps the light of two more galaxies exactly aligned behind it.

How does a ring-shaped galaxy form? It might result from an impact with another galaxy slamming into its center. Read more about ring galaxies.

HD 74156 is a distant planetary system that seemed to have a large gap between two known planets. Astronomer Rory Barnes predicted a planet there and thus become the first to find a planet outside our solar system by predicting its location in advance. That hasn't happened since astronomers found Neptune in our own solar system in the year 1846.

NASA scientists have taken close-up images from space of what they're calling 'spiders' on the planet Mars. These spiders aren't life forms, but spidery-looking channels, carved in ice at the south pole of Mars.

As Earth's climate warms, surface waters remain warm for longer and lengthen the "cholera season" for countries like Bangladesh. Marine microbiologist Rita Colwell describes a cholera early warning system that could help combat outbreaks.

Will Steger, an Arctic explorer, began his career by traveling unsupported thousands of kilometers across the polar regions by dog sled. Read more.

Ben Holt talked about Arctic change and said "there is a sense of urgency, and that the Arctic is rapidly changing, faster than people might have imagined."