Moon News  
Lunar Highlands And Mare Landscapes

Highlands and 'mare' seen by SMART-1. Image credit: ESA
by Staff Writers
Paris, France (SPX) May 29, 2006
These two images, taken by the advanced Moon Imaging Experiment aboard ESA's SMART-1 spacecraft, show the difference between lunar highlands and a mare area from close by. The first image, showing highlands, was obtained by AMIE on Jan. 22 from a distance of about 1,112 kilometers (690 miles) from the surface, with a ground resolution of 100 meters (325 feet) per pixel.

The imaged area is centered at 26 degrees south lunar latitude and 157 degrees west longitude.

The second image, showing a mare, was taken Jan. 10 from a distance of about 1,990 kilometers (1,235 miles) and with a ground resolution of 180 meters (585 feet) per pixel. The coordinates are 27.4 degrees north latitude and 0.8 degrees east longitude.

Even with the naked eye, bright and dark areas appear on the Moon's surface. Centuries ago, people called the dark areas were called maria, presumably because the features resembled oceans. Modern science has found no liquid water on the lunar surface, but telescopic observations have shown the maria are very flat and very different from the lunar highlands, which are heavily cratered and mountainous.

The Moon's maria are relatively young areas, generated after very large impacts penetrated the crust and excavated basins. During later volcanic episodes, liquid magma rose to the surface and filled the basins. When the magma cooled and solidified, it formed the large flat areas seen now. Because this happened in comparatively recent times, the number of impact craters is far less in the mare areas than in the highlands.

From the two AMIE images it is possible to see how highlands present a very irregular topography and many craters, while the mare area is comparatively flat and shows a much smaller number of craters.

Email This Article

Related Links
SMART-1
Mars News and Information at MarsDaily.com
Lunar Dreams and more

Scientist Dreams Of Us Revisiting The Moon
Moffett Field CA (SPX) May 22, 2006
Harrison "Jack" Schmitt is the only geologist to have gone prospecting on the moon. As a crew member of Apollo 17, he was also the last person to leave footprints in the lunar soil. In part one of a two-part interview with Astrobiology Magazine editor Leslie Mullen, he discusses his first-hand experience of exploring the Earth's planetary companion, and explains why future space explorers will likely face very different conditions.







  • Planetary Society Presents a New World to Congress
  • AEROFLEX Adds Plainview PW5032 RadHard To Product Line
  • ESA Extends SOHO Mission
  • Hopkins Physics Lab To Build NASA's Radiation Belt Storm Probes

  • Checking Out Cheyenne And Testing Relay For Phoenix
  • Mars Express Spots Lava Tubes On Pavonis Mons
  • Spirit Continues Winter Studies Of Soil Sky And Terrain
  • Opportunity Sees Cobbles Between The Ripples

  • Could NASA Get To Pluto Faster? Space Expert Says Yes - By Thinking Nuclear
  • NASA plans to send new robot to Jupiter
  • Los Alamos Hopes To Lead New Era Of Nuclear Space Tranportion With Jovian Mission
  • Boeing Selects Leader for Nuclear Space Systems Program

  • Astronomers Catch Planet By Unusual Means
  • Simulation Tracks Planetary Evolution
  • Giant Earth-Like Planets Could Outnumber Jupiters
  • Planets In The Vortex

  • Border Patrol Chief Spells Out Growth Plan
  • Invisibility Through Nano
  • Beyond The Hype And The Scare Stories, How Safe Are Nanoparticles
  • Nano-Loaded Wireless Sensors

  • Researchers Make Progress With Robotic Telesurgery
  • Deputy SG Talks About Future Of Air Force Medicine
  • Space Technology To Help Hospitals Contain Spread Of Avian Flu Infection
  • Stem-Cell Tech Improves Spinal-Cord Injury

  • Air Force Orders More Space Launches From Orbital
  • Heaviest Ariane 5 Payload Orbits Without A Hitch
  • Submerged Russian sub launches satellite
  • Final Go Given For Ariane 5 Launch

  • Russia And Kazakhstan To Develop Unique Space System
  • ILC Dover To Develop CEV Airbags For NASA
  • The VSE Booster Switch
  • NASA Quietly Picking COTS Finalists

  • The content herein, unless otherwise known to be public domain, are Copyright 1995-2006 - SpaceDaily.AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA PortalReports are copyright European Space Agency. All NASA sourced material is public domain. Additionalcopyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement