Scientists originally thought the climate pattern, which brings torrential summer rains and dry winters, began 22-25 million years ago as a result of the uplift of the Tibetan Plateau and the Himalaya Mountains. But UA researchers say that's not going back far enough.
A new study reveals the interactions among bacteria and viruses that prey on them thriving in oxygen minimum zones, stretches of ocean starved for oxygen that occur around the globe. The UA's newly launched Ecosystem Genomics Institute is dedicated to the researching such microbial communities in their natural environments as an important step in understanding global processes including climate.
A UA study finds that objects in our visual environment needn’t be seen in order to impact decision making. The research suggests that subconscious processing actually widens a person's field of vision.
A study by Cornell, UA and U.S. Geological Survey researchers found that due to global warming, the chance of the southwestern United States experiencing a decadelong drought is at least 50 percent, and the chance of a "megadrought" – one that lasts up to 35 years – ranges from 20 to 50 percent over the next century.
The team of the UA-led OSIRIS-REx asteroid mission invites members of the public to use social media to share their predictions about solar system exploration in the year 2023. Selected entries will travel through billions of miles of outer space, all the way to the asteroid Bennu and back.