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Editors of EarthSky

Mississippi River flooding in May 2011

The spread of the MIssissippi River beyond its banks in May 2011, as seen by Landsat 5. In the video, the 2011 images are contrasted with images from a year ago.

Tarantulas shoot silk from feet

Life-saving silk threads keep delicate tarantulas from falling.

Comet Hartley 2 is tumbling, at a changing rate

Astronomers from the Planetary Science Institute say the discovery of the changing rate of rotation of the nucleus of Comet Hartley 2 is a first.

Climate change risk is growing, says NRC report

The America's Climate Choices report calls out a pressing need for immediate action to limit the magnitude of climate change and prepare to adapt to its impacts.

Flipped orbits for some hot Jupiters

Planets form from a vast rotating cloud of gas, but some of these systems the have flipped orbits. The star is spinning one way and the planet is orbiting in the opposite direction.

Removing CO2 from air not viable technology, study concludes

A committee of 13 experts says that Direct Air Capture can't efficiently remove extra CO2 from the air. But carbon capture and storage might.

Can parsley and celery help fight breast cancer?

Study suggests that parsley, celery, and other fruits and nuts can arrest certain breast cancer tumors.

Arctic now reinforcing own warming

Researchers say feedback mechanisms are now at work in the Arctic to increase warming. In other words, the Arctic is now reinforcing its own warming.

Comet Elenin information from Don Yeomans

Comet Elenin will sweep past Earth in late 2011. NASA's Don Yeomans says its passage is nothing unusual and no dramatic events are expected.

Who knows you best? Not you, say psychologists

Research suggests people create blind spots in their own self-knowledge in order to maintain a high or low self-image. You don't know yourself.