On July 4, 1997, NASA's Mars Pathfinder mission arrived on Mars and began transmitting images from the surface of the Red Planet. The rover, named Sojourner, was the first rover to successfully land ...

When a daring team of engineers put a lander and the first rover on the Red Planet a quarter century ago, they changed how the world explores. On a July evening in 1997, Jennifer Trosper drove home ...

Half a century after NASA first placed working hardware on Mars, the agency is preparing to explore not only the planet’s surface, but its skies. The story began on July 20, 1976, when Viking 1 ...

NASA’s first rover mission to Mars, the Pathfinder, imaged an extraterrestrial marine spillover landscape 22 years ago, according to a new paper by Planetary Science Institute Senior Scientist Alexis ...