The Red Planet is home to Valles Marineris, the solar system’s largest canyon. Within this canyon lies Ius Chasma. This image, which spans the floor of its southern trench,m was taken by the Mars Reconnaissance Orbiter. The canyon is well-known for its fine stratigraphic layers modified by wind and water.
The outcrops contain interchanging layers [...]
Just before Rhea slipped behind Saturn, the Cassini spacecraft captured the moon in its disappearing act.
Along with the partly obscured Rhea (949 miles, or 1,528 kilometers across) are Tethys (665 miles, or 1,071 kilometers across), at right, and Enceladus (314 miles, or 505 kilometers across), left of Tethys.
At the wavelength in which this image was [...]
Adult stem cells originate in a different part of the brain than is commonly believed, and with proper stimulation they can produce new brain cells to replace those lost to disease or injury, a study by UC Irvine scientists has shown.
Evidence strongly shows that the true stem cells in the mammalian brain are the ependymal [...]
A boulder-strewn field of red rocks stretches across the horizon in this self-portrait of Viking 2 on Mars’ Utopian Plain.
Fine particles of red dust have settled on spacecraft’s surfaces. The same dust is responsible for Mars’ salmon-colored sky as the particles hang, suspended in the atmosphere. Color calibration charts for the cameras are mounted at [...]
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