As fall approaches Mars' northern plains, NASA's Phoenix Lander is busy digging into the Red Planet's soil and scooping it into its onboard science laboratories for analysis.
NASA's Phoenix Mars Lander has detected snow falling from Martian clouds. Spacecraft soil experiments also have provided evidence of past interaction between minerals and liquid water, processes that occur on Earth.
NASA's Mars Reconnaissance Orbiter has revealed hundreds of small fractures exposed on the Martian surface that billions of years ago directed flows of water through underground Martian sandstone.
NASA's Phoenix Mars Lander slid a rock into a nearby trench Monday to gain access to the soil under the rock.
If the robotic arm on NASA's Phoenix Mars Lander can nudge a rock aside today, scientists on the Phoenix team would like to see what's underneath.
NASA's Mars Rover Opportunity is setting its sights on a crater more than 20 times larger than its home for the past two years.
A new color high-resolution image from the Phoenix Mars Lander shows its crumpled heat shield about 150 meters away from the spacecraft.
NASA has selected a Mars robotic mission that will provide information about the Red Planet's atmosphere, climate history and potential habitability in greater detail than ever before.
NASA's Phoenix Mars Lander, having completed its 90-day primary mission, is continuing its science collection activities.
NASA's Mars Exploration Rover Opportunity has climbed out of the large crater that it had been examining from the inside since last September.
The next sample of Martian soil being grabbed for analysis is coming from a trench about three times deeper than any other trench NASA's Phoenix Mars Lander has dug.
NASA's Mars Exploration rover Opportunity is heading back out to the Red Planet's surrounding plains nearly a year after descending into a large Martian crater to examine exposed ancient rock layers.
Phoenix has scooped up a soil sample from an intermediate depth between the ground surface and a subsurface icy layer.
NASA's Phoenix Mars Lander scientists and engineers are continuing to dig into the area around the lander with the spacecraft's robotic arm, looking for new materials to analyze and examining the soil and ice subsurface structure.
Phoenix has taken the first-ever image of a single particle of Mars' ubiquitous dust, using its atomic force microscope.
Vibration of the screen above a laboratory oven on NASA's Phoenix Mars Lander on Saturday got enough soil into the oven begin analysis of the sample.
Phoenix Mars mission scientists spoke today on research in progress concerning an ongoing investigation of perchlorate salts detected in soil analyzed by the wet chemistry laboratory aboard NASA's Phoenix Lander.
Laboratory tests aboard NASA's Phoenix Mars Lander have identified water in a soil sample.
A distinctive hard-surface feature called "Snow Queen" beneath NASA's Phoenix Mars Lander visibly changed sometime between mid-June and mid-July, close-up images from the Robotic Arm Camera show.
Scientists and engineers on NASA's Phoenix Mars Mission spent the weekend examining how the icy soil on Mars interacts with the scoop on the lander's robotic arm, while trying different techniques to deliver a sample to one of the instruments.