• HAS Joint Professor Adam Showman Has Died

    Thursday, March 26, 2020
    The University of Arizona Lunar and Planetary Laboratory has shared the news that HAS Joint Professor Adam Showman passed away unexpectedly at his home on March 16, 2020. His untimely passing has been felt widely in the international planetary science community. A Zoom Memorial Service for Showman will be held on Saturday, April 4, 2020, at 1 pm MST. We extend our heartfelt condolences to Adam's family, friends, and colleagues. Read More
  • HAS Response to Covid-19

    Wednesday, March 25, 2020
    In response to the Covid-19 crisis, HAS faculty and staff are now working remotely with students and other constiuents to complete the Spring semester. You can find additional information about the University of Arizona's response here. Read More
  • Xubin Zeng Interview Archived By StoryCorps & AGU Centennial Narratives Project

    Photo Xubin Zeng
    Monday, March 9, 2020
    Congratulations to HAS Professor Xubin Zeng! Nominated by the NASA science leadership to participate in the AGU Centennial Narratives Project during the annual fall meeting in 2019, Xubin's 25-minute interview has been added to the AGU Narratives Community on StoryCorps and was archived in the American Folklife Center at the Library of Congress on March 6, 2020. In the interview, he talks about the beauty and power of simple mathematics and its impact on his life and career. The StoryCorps Archive comprises one of the largest digital collections of human voices in the world and is housed withi... Read More
  • Laura Condon Research in the News: Loss of Groundwater May Accelerate Drying Trends in Eastern U.S.

    Photo Laura Condon
    Monday, February 24, 2020
    Research just published in Nature Communications by HAS Assistant Professor Laura Condon shows that even under modest climate warming scenarios, loss of groundwater may accelerate drying trends in the eastern United States. This new first-of-its-kind study simulates how water moves in the subsurface, particularly lateral movement, and connects with the land surface. Condon used a large-scale computer simulation to demonstrate how groundwater will respond to persistent warming. Results show the eastern U.S. becoming much more sensitive to a lowering of the water table with the depletion of grou... Read More
  • Bo Guo Research on PFAS "Just the Tip of the Iceberg"

    Photo Bo Guo
    Thursday, February 20, 2020
    Congratulations to HAS Assistant Professor Bo Guo whose ongoing research on PFAS in groundwater, Chemicals in Soils are 'Ticking Time Bomb,' was reported in a news article by, on February 11. A growing health crisis fueled by synthetic chemicals known as per- and polyfuoroalkyl substances, or PFAS, in groundwater has garnered much attention in the past few years. To understand how the chemicals migrate through the soil between the land surface and groundwater (vadose zone), Guo and his collaborators developed a novel mathematical model to simulate the different complex processes tha... Read More