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Eternity, Proverbs

Incredible lunar crater images revealed

Say cheese! Nasa captures stunning images of the far side of the moon

By Cher Thornhill
18th December 2010   UK Mail Online

These amazing pictures capture the moon’s cratered surface in the most intricate detail ever recorded.

The images, which were taken by NASA’s Lunar Reconaissance Orbiter (LRO), have boosted the resolution of images of the far side of the moon over 100 times.

Digital elevation and terrain maps based on the new data reveal the heavily cratered and bumpy surface of the moon in all its complexity.

A topographic map of the moon's southern hemisphere from data provided by the Lunar Orbiter Laser Altimeter on board NASA's Lunar Reconnaissance Orbiter spacecraftFascinating detail: A topographic map of the moon’s southern hemisphere based on data from the Lunar Orbiter Laser Altimeter on board NASA’s Lunar Reconnaissance Orbiter spacecraft 

Dr Gregory Neumann of NASA’S Goddard Space Flight Center in Greenbelt, Maryland, said that digital elevation and terrain maps based on the new data ‘will be a fundamental reference for future scientific and human exploration missions to the moon.’

The brilliant, iridescent green concepts, pictured here, show the topography of different hemispheres of the moon.

A topographic map of the moon's northern hemisphere.The false colors indicate elevation: red areas are highest and blue lowestHeavily cratered: A topographic map of the moon’s northern hemisphere. The false colours indicate elevation: red areas are highest and blue lowest 

Dr Neumann said: ‘After about one year taking data, we already have nearly 3 billion data points from the Lunar Orbiter Laser Altimeter on board the LRO spacecraft.

‘We expect to continue to make measurements at this rate through the next two years of the science phase of the mission and beyond. Near the poles, we expect to provide near-GPS-like navigational capability as coverage is denser due to the spacecraft’s polar orbit.’

A topographic map centered on the Apollo 15 landing site, highlighting the Apennine and Caucasus ranges and the fairly subtle wrinkling in SerenitatisMoon atlas… at last? A topographic map centered on the Apollo 15 landing site 

The Lunar Orbiter Laser Altimeter (LOLA) works by sending a laser pulse through an optical lense that splits it into five beams that are each scattered back after they strike the lunar surface.

From the return pulse, LOLA determines the time of flight which, accounting for the speed of light, reveals the distance from the spacecraft to the lunar surface.

The positional errors of image mosaics of the lunar far side have been between one and ten kilometres (about 0.62 to 6.2 miles), Neumann said.

He added: ‘We’re beating these down to the level of 30 metres (almost 100 feet) or less spatially and one metre (almost 3.3 feet) vertically.’

Full article here

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About steveblizard

Steve Blizard commenced his financial planning career in 1988 from a background of life insurance broking, a field in which he still works. He is a member of the Financial Planning Association and the Responsible Investment Association. His experience ranges from administration of Superannuation to advice regarding insurance, retirement, remuneration and investment planning. Steve is an accredited Remuneration Consultant, specialising in salary packaging. He is a columnist for the Swan Magazine and the WA Business News

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