Rainbow colors reveal elevation changes as the Tharsis Tholus volcano rises from the surrounding terrain on Mars, seen in a newly released picture from the European Space Agency's Mars Express orbiter.
The volcano towers almost 5 miles (8 kilometers) and spreads more than 96 by 77 miles (155 by 125 kilometers) at its base. In addition to its deep, crater-like caldera—formed when the central magma chamber collapsed—the volcano suffered from collapses on its eastern and western flanks that created vertical cliffs several kilometres high.
The picture was taken from Rapid City, South Dakota, using a camera mounted to a telescope and fitted with special filters for blocking light pollution. Capturing this shot of the nebula from 6,500 light-years away required an exposure time of ten hours.
Photograph by Richard Walker, Your Shot
Date With Destiny
Robonaut 2, the first dexterous humanoid robot in space, is seen being put through its paces in the Destiny lab aboard the International Space Station in early November.
Crew members recently had Robonaut 2 move its arm joints for the first time in the almost zero-gravity environment aboard the station. The tests will help engineers develop tasks that the robotic helper can perform in space.
Multimillion-degree gas is carving bubbles in the Tarantula Nebula, as seen in a new composite picture from NASA's Chandra X-ray Observatory and the Spitzer Space Telescope. The hot gas is seen in x-rays (blue) while the surrounding cooler gas and dust of the nebula appears in infrared (orange).
More than 2,400 stars in the nebula are producing intense radiation and powerful stellar winds, creating shock fronts in the nebula that drive the superheated gas.