Facebook Twitter Email. Show Caption. Hide Caption. Arizona's Grand Canyon may be awe-inspiring, but it's just "a scratch" compared to the Valles Marineris Canyon on Mars, new photos reveal.
Approaching Titan a Billion Times Closer. What can you see in the April sky? The Moon visits Mars in the evening, and later joins Saturn and Jupiter for a spot of tea.
Also, how to find Polaris, the North Star. This animation shows the last 30 seconds of Cassini's X- and S-band radio signals as they disappeared from mission control on Sept. Cassini's last X- and S-band radio signals. Clara, Sugar Plum Fairy, move aside. Saturn's moons give Tchaikovsky's classic ballet, "The Nutcracker," a graceful new spin in this video compiled from some 61 images taken by the Cassini spacecra Saturn Moon Ballet. The animation archived on this page shows the geocentric phase, libration, position angle of the axis, and apparent diameter of the Moon throughout the year , at hourly intervals.
Moon Phase and Libration, Meet Lucy as she prepares for the first journey to the Trojan asteroids, small bodies orbiting in tandem with Jupiter.
Cassini stares deep into the swirling hurricane-like vortex at Saturn's south pole, where the vertical structure of the clouds is highlighted by shadows. Looking Saturn in the Eye. Six years of exploration through the 'eyes' of the Mars Exploration Rover Spirit. Spirit of Mars. Spacecraft at JPL. This movie shows clouds in the mid-southern latitudes of Saturn's largest moon, Titan, in a series of images captured by NASA's Cassini spacecraft a few months after fall began in the southern hemi Titan's Moving Mid-Latitude Clouds.
Discover the mysteries of the solar system through the eyes of the Lucy mission and its team members. Seeking August skywatching highlights? The Moon poses with the planets, and the Perseid meteors peak! What's Up: August [Video]. Lunar Eclipse From Mercury. In the west, Noctis Labyrinthus is made from a network of intersecting closed canyons and depressions. These appear to align with faults in the surrounding plateau.
Farther to the east in Noctis, the depressions widen and deepen and become more continuous as they merge to make the main east-west trending canyons of Valles Marineris. Farther toward east, the canyons become shallower, with fluvial features being more common. Eventually, the canyon system disappears into chaotic terrain. Although the canyons show many signs of containing lakes, the canyons themselves are thought to have formed by geologic faulting on a huge scale. The canyons are gigantic grabens.
A graben is a piece of crust that drops down between roughly parallel faults on both sides when the crust is under tension. Scientists don't know exactly what started the process, but most suspect the faulting was linked to the increase of volcanic activity in Tharsis.
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