31/10/2015

Arctic snow not darkening due to soot, dust, study finds

For millennia, Greenland's ice sheet reflected sunlight back into space, but satellite measurements in recent years suggest the bright surface is darkening, causing solar heat to be absorbed and surface melting to accelerate. ...

Research shows Cuba's Internet issues

In December 2014, President Barack Obama made history by reestablishing diplomatic relations with Cuba, which included loosening its economic embargoes. Two months later, American companies like Netflix and Airbnb announced ...

Finding new worlds with a play of light and shadow

Astronomers have used many different methods to discover planets beyond the solar system, but the most successful by far is transit photometry, which measures changes in a star's brightness caused by a mini-eclipse. When ...

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