Mars Express Reveals Wind-Blown Deposits On Mars | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-05.06.24

Airborne-NextGen-04.30.24

Airborne-Unlimited-05.01.24 Airborne-AffordableFlyers--05.02.24

Airborne-Unlimited-05.03.24

Wed, Feb 08, 2012

Mars Express Reveals Wind-Blown Deposits On Mars

Images Coming Back To ESA Show Stark Landscape

New images from ESA’s Mars Express show the Syrtis Major region on Mars. Once thought to be a sea of water, the region is now known to be a volcanic province dating back billions of years. Syrtis Major can be spotted from Earth even with relatively small telescopes – the near-circular dark area on the planet stretches over 1300 x 1500 km.

Christiaan Huygens discovered this area in 1659 and by repeated observations he used it to time the length of day on Mars. Early ideas held that it was a sea with a water level that rose and fell, causing the markings to change. Now, however, we know that the region is volcanic in origin, devoid of water and that the changes in its shape are due to dust and sand being blown around in the wind.

Newly released images of a part of Syrtis Major seen from ESA’s Mars Express orbiter show lava flows that flooded the older highland material, leaving behind buttes – isolated hills with steep sides that were too high to be affected. They can be identified by their lighter colours and their eroded state, and some even show ancient valleys on their flanks.
 
Individual lava flows, filled craters and partly-filled craters can be made out in the images. The prevailing wind direction can be seen from the dispersal of the lighter-toned dust and darker-toned sand in and around the craters and buttes. The smaller craters illustrate this clearly. The largest crater in the pictures has a small central peak and contains a small dune field of darker-toned dunes to the east of its floor.
 
The number and size of craters can be used to date surfaces in the Solar System because craters slowly accumulate as impacts occur over time. This information can be used to date the volcanic province and suggests an age of over 3 billion years.

FMI: www.esa.int/esaCP/SEM1NHTXXXG_index_0.html

Advertisement

More News

ANN's Daily Aero-Term (05.07.24): Hazardous Weather Information

Hazardous Weather Information Summary of significant meteorological information (SIGMET/WS), convective significant meteorological information (convective SIGMET/WST), urgent pilot>[...]

ANN's Daily Aero-Linx (05.07.24)

Aero Linx: The T-6 Racing Association The T-6 Racing Association is all about T-6‘s and racing. Our mission is to bring great racing to our fans in Reno and other venues wher>[...]

Airborne 05.01.24: WACO Kitchen, FAA Reauthorization, World Skydiving Day

Also: Electra Aero, AMO-CBP v Smugglers, Naval King Airs, Boeing Deal To the surprise of everyone involved, Waco Kitchen shut down both airport operations with little warning and h>[...]

Airborne Affordable Flyers 05.02.24: Bobby Bailey, SPRG Report Cards, Skydive!

Also: WACO Kitchen Bails, French SportPlane Mfr to FL, Dynon-Advance Flight Systems, Innovation Preview Bobby Bailey, a bit of a fixture in sport aviation circles for his work with>[...]

Airborne 05.03.24: Advanced Powerplant Solutions, PRA Runway Woes, Drone Racing

Also: Virgin Galactic, B-29 Doc to Allentown, Erickson Fire-Fighters Bought, FAA Reauthorization After dealing with a big letdown after the unexpected decision by Skyreach to disco>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2024 Web Development & Design by Pauli Systems, LC