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Kevin Hand Planetary Scientist and Astrobiologist

Kevin Hand

Image © Guillermo Abramson

Kevin Hand
Photograph by Mark Thiessen

“The fundamental questions we’re trying to answer are questions humanity has asked ever since we first gazed into the night sky: What is life and could it exist out there beyond Earth?”

Astrobiologist and National Geographic Emerging Explorer Kevin Hand is searching for life beyond Earth. NASA’s mantra in this quest has long been “follow the water.” When NASA’s Galileo mission in 1989 detected hints of a vast sub-surface ocean on Europa (Jupiter’s fourth largest moon), that discovery sparked intense curiosity about the potential for finding life in this alien world nearly 600 million miles from Earth.

Working in the Jet Propulsion Laboratory, Hand is helping plan a NASA mission to Europa to get a closer look. To create instruments that will travel hundreds of millions of miles through space, he has traveled to the most forbidding environments on Earth. “I’m trying to understand extremes of life here, so we can better assess and investigate habitable environments on alien worlds like Europa.” He has explored the north slope of Alaska, the glaciers of Mount Kilimanjaro, the valleys of Antarctica, and the depths of our oceans to see how microbes eke out a living in our world’s harshest climes.

For someone focused on a world millions of miles away, Hand is also remarkably engaged in his own planet’s problems. “When I think about the desire to connect with life elsewhere in the universe, it gives me an incredible sense of the fragility of life here on Earth and how crucial it is to protect our collective home.” This led him to found Cosmos Education, a nonprofit working to advance critical thinking skills and empower some of Africa’s poorest children through science, health, and environmental education.

Hand has served on NASA’s Science Definition Teams for the Europa Flagship mission and has worked on several instruments for solar system exploration, including a spectrometer that was field tested in Antarctica and proposed for the instrument suite on Curiosity, the Mars Science Lab rover. He is also the Principal Investigator for the NASA Astrobiology Institute’s Icy Worlds Team. In 2005, Hand appeared alongside director James Cameron in Aliens of the Deep, applying his knowledge about extraterrestrial environments to Earth’s own unexplored territories. And more recently, Hand was part of James Cameron’s team on his record-breaking Mariana Trench dive.

Popular Presentations

The Search for Life Beyond Earth
Dr. Hand shares the latest scientific discoveries and engineering challenges that are helping us explore whether other worlds can support life.

Ocean Worlds of the Outer Solar System
Focusing largely on Europa, Hand reveals the science behind why we think oceans exist beyond Earth, and what we know about extraterrestrial environments that could support life.

Learn More About Kevin:

Emerging Explorer Profile

NASA Jet Propulsion Laboratory Profile

Founder of Cosmos Education

Antarctic Journal Entries

Picture of Kevin Hand next to a rainbow

Listen to Radio Interview With Kevin Hand

Boyd Matson Interviews Kevin Hand for NG Weekend Radio Show

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