TUCSON, Arizona, Aug. 8 (TNSjou) -- The University of Arizona issued the following news release: * * * Alpha Centauri, sun's closest stellar neighbor, likely harbors giant planet A giant planet could be orbiting a star in the stellar system closest to our own sun, a slice of the galaxy that has long been a compelling target in the search for worlds beyond our solar system. The finding comes from newly published observations of the Alpha Centauri triple star system that researchers at the Un  more

TUCSON, Arizona, Aug. 8 (TNSjou) -- The University of Arizona issued the following news release: * * * Global network taps tree rings to study impact of tropical drought A new study leveraging 20,000 tree-ring records and nearly 150 scientists' contributions from across the globe shows that, while droughts appear to have had a modest impact on tropical tree growth in the past, that may not be the case for long. The research team calculated that, on average across the tropics, trees grew 2.5  more

TUCSON, Arizona, Aug. 8 (TNSjou) -- The University of Arizona issued the following news release: * * * Tree ring study reveals Western Apache fire management practices buffered climate effects A new study using fire-scarred trees and data collected by University of Arizona tree-ring researchers has documented extensive fire management practices by Western Apache people that significantly reduced the climate's influence on fire activity across their homeland. The research, led by SMU fire sci  more