Sarah Stewart Johnson is an American  astronomer and planetary scientist. Career Johnson's work primarily focuses on the surface of Mars and questions of Martian habitability, and her lab at Georgetown focuses on the detection of biosignatures . She participated in the Curiosity, Opportunity, and Spirit missions.
Sarah Stewart Johnson is an American biologist, geochemist, astronomer and planetary scientist. Career Johnson's work involves the use of analog environments to study the habitability of the surface and subsurface of Mars and icy moons. Her lab at Georgetown is currently focused on the detection of agnostic biosignatures, sometimes referred to as "life as we don't know it" . She participated in the Curiosity, Opportunity, and Spirit missions.
A
biologist, geochemist,
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primarily focuses on the surface
involves the use of analog environments to study the habitability of the surface and subsurface
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questions of Martian habitability, and her
icy moons. Her
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focuses
is currently focused
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biosignatures
agnostic biosignatures, sometimes referred to as "life as we don't know it"