Sarah Stewart Johnson is an associate professor at Georgetown University, a visiting scientist at NASA’s Goddard Space Flight Center, and the author of The Sirens of Mars: Searching for Life on Another World.
One Last Martian Love Fest
Where did the Martian magnetic field go? Can we drill for water at its poles? Your Red Planet questions answered with ‘The Sirens of Mars’ author Sarah Stewart Johnson.
Blast Off To The Red Planet With The Spring Book Club
A planetary scientist explores the history of Mars in her book, “The Sirens of Mars.”
The Importance Of Gathering Samples From Mars Before Humans Arrive
Scientist Sarah Stewart Johnson makes the case for why we should do as much science as we can on Mars—before humans step foot on the planet.
A Glancing Blow: How the Earth Got Its Moon
How did the Earth’s tilt set the moon into its current orbit?