Posts by 

Deborah Byrd

Saturn’s moon Rhea and the shadow of Saturn’s rings

In this beautiful image, Saturn itself is in the background. The moon Rhea is in silhouette. The dark lines are the shadow of Saturn's rings.

December 4 is Mountain Day 2011

Going on simultaneously with COP 17, Mountain Day calls attention to climate change impacts on mountain people in the Hindu Kush-Himalayan high mountain region.

Martian avalanches may be caused by meteors

Orbiting spacecraft have now seen avalanches of dust on the surface of the planet Mars. Martian avalanches and quakes might be caused by meteor airbursts.

Martian gullies not all formed by flowing water

Some Martian gullies at the poles might have formed when a seasonal accumulation of carbon dioxide frost sublimed - turned directly from a solid to a gas.

Whale Song Project needs your help

In the Whale Song Project, you can help figure out which groups of whales have different dialects. Maybe even help figure out what some whale songs mean.

Deadly man-made strain of bird flu virus: Should they publish?

A science team in the Netherlands used genetic modification to create a deadly man-made strain of bird flu. Now they want to publish. But should they?

Cynthia Rosenzweig on climate change and cities

Cynthia Rosenzweig talked about how Earth's warming climate will affect – and is already affecting – many of the world’s most important cities.

After successful launch, new 8-month mission to Mars underway

We're on our way to Mars. The spacecraft is in communication, thermally stable and power positive.

Coming soon, insect cyborgs to the rescue

The latest buzz on insects is that they could be implanted with devices like tiny cameras, microphones and gas sensors - to go places humans can't.

Goodbye Hurricane Kenneth!

NASA satellite images show that wind sheer has Pushed tropical depression Kenneth apart like a stack of tires. The power of nature!