Ariel Anbar Archives

ASU scientist solving puzzle of Earth’s oxygen

Analysis of selected bands of the late Archean Mt. McRae Shale found in the upper 200 meters of the ABDP-9 core provide evidence of oxygen in Earth's atmosphere 50-100 million years earlier than previously known. Also pictured is a vial of processed -- pummeled -- rock powder used for geochemical analysis. Credit: Arizona State University, Tim Trumble

Earth’s oxygen-rich atmosphere emerged as transient “whiffs” in shallow oceans around 2.5 billion years ago, according to new research from Canadian and US scientists. These whiffs of oxygen likely happened in the following 100 million years, changing the levels of oxygen in Earth’s atmosphere until enough accumulated to create a permanently oxygenated atmosphere around 2.4… Read More →

ASU, Mayo researchers develop real-time test for bone cancer


Are your bones getting stronger or weaker? Right now, it’s hard to know. But a new test for detecting bone loss, being developed by Arizona State University and Mayo Clinic researchers, offers the possibility of near real-time monitoring of bone diseases. The technique, which measures changes in calcium isotope ratios, has passed an important hurdle by… Read More →

ASU biogeochemist among 15 top scientist-educators

Ariel Anbar and ASU graduate student Yun Duan inspect a sample of 2.5 billion-year-old seafloor.

Biogeochemist Ariel Anbar has been selected as Arizona State University’s first Howard Hughes Medical Institute (HHMI) Professor. This distinguished honor recognizes Anbar’s pioneering research and teaching. He is one of 15 professors from 13 universities whose appointments were announced by the Maryland-based biomedical research institute on June 30. The appointment includes a five-year $1 million… Read More →