This frame from a sequence of images shows a blast zone where the sky crane from NASA's Curiosity rover mission hit the ground after setting the rover down in August 2012. The images are from HiRISE on NASA's Mars Reconnaissance Orbiter.
From afar, Saturn's rings look like a solid, homogenous disk of material. But upon closer examination from NASA's Cassini spacecraft, we see that there are varied structures in the rings at almost every scale imaginable.
Hole at 'Telegraph Peak' Drilled by Mars Rover Curiosity
This hole, with a diameter slightly smaller than a U.S. dime, was drilled by NASA's Curiosity Mars rover into a rock target called 'Telegraph Peak.' The rock is located within the basal layer of Mount Sharp. The hole was drilled on Feb. 24, 2015.
NASA's Curiosity Mars rover can be seen at the 'Pahrump Hills' area of Gale Crater in this view from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.
This view NASA's Curiosity Mars Rover shows the rover's drill in position for a mini-drill test to assess whether a rock target called 'Mojave' is appropriate for full-depth drilling to collect a sample. It was taken on Jan. 13, 2015.
This illustration portrays some of the reasons why finding organic chemicals on Mars is challenging. Whatever organic chemicals may be produced on Mars or delivered to Mars face several possible modes of being transformed or destroyed.
Comparing 'Cumberland' With Other Samples Analyzed by Curiosity
This graphic offers comparisons between the amount of an organic chemical named chlorobenzene detected in the 'Cumberland' rock sample and amounts of it in samples from three other Martian surface targets analyzed by NASA's Curiosity Mars rover.
Some Data from Detection of Organics in a Rock on Mars
Data graphed here are examples from the Sample Analysis at Mars (SAM) laboratory's detection of Martian organics in a sample of powder that the drill on NASA's Curiosity Mars rover collected from a rock target called 'Cumberland.'
This illustration portrays possible ways methane might be added to Mars' atmosphere (sources) and removed from the atmosphere (sinks). NASA's Curiosity Mars rover has detected fluctuations in methane concentration in the atmosphere.
Methane Measurements by NASA's Curiosity in Mars' Gale Crater
This graphic shows tenfold spiking in the abundance of methane in the Martian atmosphere surrounding NASA's Curiosity Mars rover, as detected by a series of measurements made with the Tunable Laser Spectrometer instrument in the rover's laboratory suite.
Tunable Laser Spectrometer on NASA's Curiosity Mars Rover
By measuring absorption of light at specific wavelengths, Tunable Laser Spectrometer (TLS) onboard NASA's Curiosity measures concentrations of methane, carbon dioxide and water vapor in Mars' atmosphere.
Cross-bedding seen in the layers of this Martian rock is evidence of movement of water recorded by the waves or ripples of loose sediment the water passed over, such as a current in a lake. This image is from NASA's Curiosity Mars rover.
This simulation depicts a lake partially filling Mars' Gale Crater, receiving runoff from snow melting on the crater's rim, showing evidence that NASA's Curiosity rover has found ancient streams, deltas and lakes.
This image depicts how a mountain inside a Mars' Gale Crater might have formed. At left, the crater fills with layers of sediment. Yellow is for deposits in alluvial fans, deltas, and drifts during both wet and dry periods.
This series of images reconstructs the geology of the region around Mars' Mount Sharp, where NASA's Curiosity Mars rover landed and is now driving. The images were taken on Earth and have been altered for the illustration.
Lozenge-shaped crystals are evident in this magnified view of a Martian rock target called 'Mojave,' taken on Nov. 15, 2014, by NASA's Curiosity Mars rover. These features record concentration of dissolved salts, possibly in a drying lake.
This view from the NASA's Curiosity Mars rover shows an example of cross-bedding that results from water passing over a loose bed of sediment. It was taken at a target called 'Whale Rock' within the 'Pahrump Hills' outcrop at the base of Mount Sharp.
This image from NASA's Curiosity Mars rover shows an example of a thin-laminated, evenly stratified rock type that occurs in the 'Pahrump Hills' outcrop at the base of Mount Sharp on Mars. This type of rock can form under a lake.