| School of Earth and Space Exploration

Glacial Climate from Clumped Isotope Thermometry

The emergence of new proxies enables us to address fundamental questions about Earth’s climate evolution. We can apply novel methods to help visualize the past, and compare observations with theoretical predictions from computer models to probe how atmospheric and oceanic dynamics respond to changing climate forcing. I will discuss applications of a new geothermometer to study the climate of the last ice age. This geothermometer is based on the abundance of 13C-18O bonds in carbonates, termed “clumped isotope” thermometry.

Read more about Aradhna Tripati Colloquium Abstract (October 23, 2019)

Pro-Social Behaviors are Contagious: Creating Brave Spaces for Bystander Intervention of Bullying and Harassment

In this talk, I will present results of research by the Equal Employment Opportunity Commission, the CDC, and others who have studied anti-harassment campaigns in professional spaces. I will focus on research into a framework of anti-bullying and anti-harassment called "Bystander Intervention." With colleagues at the US Geological Survey, I have expanded and evolved The University of Arizona's StepUp!

Read more about Moses Milazzo Colloquium Abstract (October 16, 2019)

Miniaturizing Exploration: Thinking Small to Investigate the Deep Ocean to Deep Space

In a world of cell phones, automobiles, and laptop computers, we demand our systems to be always working, always reliable, and always ready. Massive worldwide adoption has meant that miniaturized electronics are now readily available with high reliability. As we dive deeper into the oceans (and further into space), we have benefited from these commercial electronics, allowing us to reduce the size of our explorers.

Read more about Andrew Kelsh Colloquium Abstract (Sept 11, 2019)

Looking Down from the Bottom of the Sea: Imaging Mantle Convection and Tectonic-Plate Formation from a New Perspective

Fifty years into the plate-tectonic era, Earth scientists struggle to constrain two fundamental components of the tectonic model: (1) what is the nature and scale of the mantle convection processes that drive the plate motion?; and (2) what processes control the localized weakening of plate boundaries that enables plates to move?

Read more about James Gaherty Colloquium Abstract (Aug 28, 2019)

Robots in the Wild: Collaborative Exploration and Mapping

Robotics and AI are enabling safe and efficient exploration of unstructured, uncertain, and hazardous environments, driving new discoveries in earth and space sciences alike. In this talk, I will present examples from three domains -- marine sciences, agriculture, and geology, highlighting spatio-temporal observation of environmental and biological processes at unprecedented scale and resolution.

Read more about Jnaneshwar Das Colloquium Abstract (Mar 13, 2019)

Read more about Ángel García, PhD in Geological Sciences, 2018

Read more about Billy Merino, BS in Earth and Space Exploration, 2017

Read more about Cassie Collins, BS in Earth and Space Exploration, 2018

Searching For Small Planets With a Tiny Telescope: The Story of ASTERIA

The study of exoplanets, planets around other stars, has exploded since the discovery of the first exoplanet orbiting a Sun-like star in 1995.

Read more about Mary Knapp Colloquium Abstract (Mar 30, 2019)

The Ridiculous World of Scientific Ballooning

You may think that scientific ballooning combines the gentle joy of a hot air balloon ride with the excitement of discovery and adventure. While the last 60+ years of scientific balloon flights operated by NASA have discovered a great many things, the process of getting a telescope off the ground and into the stratosphere is anything but gentle, fraught with challenges, heartbreak, and exhilaration.

Read more about Erika Hamden Colloquium Abstract (Feb 13, 2019)

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