Exoplanets, Planets, Robotic Spaceflight, Solar System, Space Exploration Mars Madness: Perseverance rover is about to begin its mission
Exoplanets, Planets, Robotic Spaceflight, Solar System How does NASA navigate a Mars rover’s direction and determine its location with the planet having no global magnetic field?
Human Spaceflight, Space Exploration These “astronauts” had the right stuff, but never made it to space