SCIENCE SCENE.

The moon has reduced in size by 50 meters over the last several hundred million years due to a cooling interior--and it remains tectonically active. As the moon shrinks, it gets wrinkled and forms "thrust faults," resulting in one section of surface crust pushing up over another crust. "Our analysis gives the first evidence that these faults are still active and likely producing moonquakes," says Thomas Watters, a senior scientist from the Center for Earth and Planetary Studies. They are "fairly strong, around five on the Richter scale."

Collaboration between the U.S. and Mexico has resulted in a pulse flow through the Colorado River Delta, which, in turn, has led to a 20% increase in bird abundance and a 42% jump in avian diversity, according to a study from the International Boundary and Water Commission. "Nearly 300,000 native trees have been planted--creating a haven for birds and possibly future recreation sites for local communities," says Jennifer Pitt, Colorado River program director for the National Audubon Society.

Coffee and climate come together on the mountainous slopes of Guatemala, where fields are threatened by changing rainfall, rising temperatures, and a fungus called "coffee rust." That is not good news for a country that annually exports $756,000,-000 in coffee--the nation's third-largest export after raw sugar and bananas. According to Kevin Anchukaitis, associate professor in the School of Geography and Development at the University of Arizona, coffee rust is the crop's most-prevalent threat and it is tied to changing climate conditions. Solutions, thus far, have proved elusive.

Different groups of neurons "predict" the body's looking and reaching movements, suggesting an orchestration among distinct parts of the brain, and potentially offering insights into different forms of mental illness, a team of neuroscientists has found. "Identifying which neurons are involved in looking and reaching actions means we can actually see them firing before...