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John P. Grotzinger
Latest John P. Grotzinger Items
The NASA rover Curiosity has beamed back pictures of bedrock that suggest a fast-moving stream, possibly waist-deep, once flowed on Mars _ a find that the mission's chief scientist called exciting.
The ancient Martian crater where the Curiosity rover landed looks strikingly similar to the Mojave Desert in California with its looming mountains and hanging haze, scientists say.
The ancient Martian crater where the Curiosity rover landed looks strikingly similar to the Mojave Desert in California with its looming mountains and hanging haze, scientists said Wednesday.
NASA's Curiosity rover has transmitted a low-resolution video showing the last 2 1/2 minutes of its white-knuckle dive through the Martian atmosphere, giving earthlings a sneak peek of a spacecraft landing on another world.
NASA celebrated the precision landing of a rover on Mars and marveled over the mission's first photographs Monday _ grainy, black-and-white images of Martian gravel, a mountain at sunset and, most exciting of all, the spacecraft's white-knuckle plunge through the red planet's atmosphere.
NASA's Curiosity rover on Monday transmitted a low-resolution video showing the last 2 1/2 minutes of its white-knuckle dive through the Mars atmosphere, giving Earthlings a sneak peek of a spacecraft landing on another world.
Two months before NASA is set to land its most sophisticated rover on Mars, engineers on Earth are busy troubleshooting a nagging concern with the rover's drill that could contaminate rock samples gathered for study.
A high-resolution 3-D camera that "Avatar" director James Cameron was helping to build for NASA's next Mars rover won't fly after all.