27
Apr 11

Profiling Polar Craters with the Mercury Laser Altimeter

Source: MESSENGER Mission


.MLA’s first measurements from Mercury orbit. Credits: MESSENGER.

MESSENGER’s Mercury Laser Altimeter (MLA) will measure the topography or surface relief of the northern hemisphere of Mercury. That data will be used to create topographic maps, which will help characterize the geologic history of the planet. One of the most important tasks for MLA is to measure the depths of craters that are near Mercury’s north pole. In the latest “Science Highlights from Mercury’s Orbit,” MESSENGER’s Geophysics discipline group explains why.(read more)

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27
Apr 11

Andromeda’s coat of many colours

Source: ESA


Credit: ESA.

ESA’s fleet of space telescopes has captured the nearby Andromeda Galaxy, also known as M31, in different wavelengths. Most of these wavelengths are invisible to the eye and each shows a different aspect of the galaxy’s nature.(read more)

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