The Movers and Shakers Behind the Science
DR. ALEXANDRIA JOHNSON
Assistant Professor of Practice
Assistant Professor of Research
Dr. Johnson earned her B.S. in Physics with a minor in Mathematical Sciences from Michigan Technological University and her Ph.D. in Atmospheric Science from Purdue University. Her work has tackled a wide range of topics and scientific methods including airborne measurements of water vapor in pre-depression areas over the Atlantic, laboratory studies of water ice nucleation in the atmospheres of Earth and Mars, and high-resolution single cloud models for comparison with maritime cumulus observations. Most recently she has become interested in laboratory studies of exoplanet clouds and atmospheres.
Matt is interested in understanding the processes and physics that govern the dynamics and evolution of the deep interior and surface of planetary bodies. Specifically, he seeks to understand how the deep interior and surface link to generate planetary atmospheres, control surface conditions, tectonics, interior evolution, and how this coupling may allow for the potential of habitability over time. When not working, you will find him doing other things, in other places.
Graduate Researcher - Ph.D.
Colin earned his B.S. in Physics with an Astrophysics concentration from Towson as a University Honors Scholar. Though his first undergraduate work focused on ionized gas surrounding distant galaxies, he fell in love with planetary science after an extended internship at the Applied Physics Laboratory (APL). At APL, he studied icy polar deposits on the planet
Mercury and the geochemistry of meteorites in a laboratory. Recently, he has become fascinated by the physics occurring within the atmospheres of other worlds. After graduate school, he plans
on building a career as a planetary scientist and science communicator.
Graduate Researcher - M.S.
Kevin graduated from Purdue University in 2016 with a BS in Industrial Engineering. His original undergraduate work focused on Optimization and Human Factors. After graduation, he discovered a passion for space science and was inspired to pursue additional schooling, where he is currently studying Astrobiology by combining curricula from Biology and EAPS. In that capacity, he joined the SEND lab of Dr. Shalamar Armstrong, where his research has focused on studying how the soil microbial community responds to cover crop degradation. He is now excited for the opportunity to combine his eclectic multidisciplinary background with his interests in the study of exoplanets.
Valeria is currently a junior studying Planetary Science and Atmospheric Science. Fascinated by extreme weather on other planets like Jupiter and Neptune, Valeria has dedicated her time at Purdue to learning about Planetary Atmospheres. From participating in severe storm field work in the central plains to researching the chemical composition of brown carbon aerosols within Purdue's Department of Chemistry, Valeria has had the opportunity to explore the broad field of Atmospheric Science. She looks forward to further expanding her knowledge and applying it to worlds vastly different from our own.
Logan Grey is a junior majoring in Physics with a concentration in EAPS and is also pursuing minors in Sustainable Environments as well as Natural Resources and Environmental Science. He has developed a passion for the environment and the natural phenomena of the universe after visiting several national parks and seeing how they relate to everyday life. Logan is a member of the Purdue chapter of the Society of Physics Students. After graduating, he plans to pursue graduate school and later work for an environmental government agency, but for now is excited about his research with the Johnson Cloud Lab.
Julianna Heptinstall is a junior studying both Atmospheric Science and Planetary Science. She has always been fascinated by the weather and recently has taken an interest in how atmospheric properties can be applied to the ocean and other planets. Julianna is a member of the Purdue University Meteorological Association and one of the founders of the Planetary Science Society of Purdue. She is also a student in the Purdue Honors College and holds multiple positions in Purdue’s chapter of Kappa Delta Sorority. After graduation, Julianna plans to continue her education and later work in public outreach dealing with severe weather events.
Jasmine Singh is a junior double majoring in Planetary Science and Atmospheric Science. Ever since she was little, she has had a passion for space and space travel. Jasmine believes humanity's curiosity is what drives us to explore unknown worlds in and out of our solar system. In our species' insatiable hunger for answers within our universe, She believe that one of the most intriguing of those questions is about other planets' atmospheres, which will help us in the search for signs of extraterrestrial life. After completing her undergraduate studies, Jasmine plans on furthering her education and continuing to study planetary atmospheres with the aim of working for NASA.
PAST CLOUD LAB MEMBERS
Natalie Grober - Undergraduate @ Purdue University in Planetary Science and English; Joined the lab as part of the Summer Stay program at Purdue
Robert Washington - Undergraduate @ Purdue University in Planetary Science
David Tersegno - PhD student @ Brown University in Earth, Environmental and Planetary Sciences
Dana Altoaimi - Undergraduate @ Brown University in Earth, Environmental and Planetary Sciences; joined the lab as part of the KAUST Gifted Student Program
Kimberly Hernandez - Undergraduate @ Wellesley College in Physics; joined the lab as part of Leadership Alliance program at Brown University