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Exposed Ice in the Northern Mid-Latitudes of Mars
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Author and Affiliation:
Allen, Carlton C.(NASA Johnson Space Center, Houston, TX, United States)
Ice-Rich Layer: Polygonal features with dimensions of approximately 100 meters, bounded by cracks, are commonly observed on the martian northern plains. These features are generally attributed to thermal cracking of ice-rich sediments, in direct analogy to polygons in terrestrial polar regions. We mapped polygons in the northern mid-latitudes (30 to 65 N) using MOC and HiRISE images. Polygons are scattered across the northern plains, with a particular concentration in western Utopia Planitia. This region largely overlaps the Late Amazonian Astapus Colles unit, characterized by polygonal terrain and nested pits consistent with periglacial and thermokarst origins. Bright and Dark Polygonal Cracks: An examination of all MOC images (1997 through 2003) covering the study area demonstrated that, at latitudes of 55 to 65 N, most of the imaged polygons show bright bounding cracks. We interpret these bright cracks as exposed ice. Between 40 and 55 N, most of the imaged polygons show dark bounding cracks. These are interpreted as polygons from which the exposed ice has been removed by sublimation. The long-term stability limit for exposed ice, even in deep cracks, apparently lies near 55 N. Bright and Dark Spots: Many HiRISE and MOC frames showing polygons in the northern plains also show small numbers of bright and dark spots, particularly in western Utopia Planitia. Many of the spots are closely associated with collapse features suggestive of thermokarst. The spots range from tens to approximately 100 meters in diameter. The bright spots are interpreted as exposed ice, due to their prevalence on terrain mapped as ice rich. The dark spots are interpreted as former bright spots, which have darkened as the exposed ice is lost by sublimation. The bright spots may be the martian equivalents of pingos, ice-cored mounds found in periglacial regions on Earth. Terrestrial pingos from which the ice core has melted often collapse to form depressions similar to the martian dark spots. Future Observations: The SHARAD radar should be able to confirm the presence and measure the depth of the interpreted ice-rich layer that forms the Astapus Colles unit. If this layer is confirmed it will strengthen the interpretation of bright polygon cracks and bright spots as exposed ice. HiRISE images of the northern plains are showing unprecedented details of the polygonal cracks. Future HiRISE images that include bright spots, compared to MOC images taken years earlier, will illustrate the temporal stability of the spots. The CRISM spectrometer, with multiple spectral bands and a spatial resolution around 20 meters, should allow mineralogical identification of the material exposed in the polygonal bounding cracks and in the bright spots.
Publication Date:
Jan 01, 2007
Document ID:
(Acquired Oct 09, 2007)
Subject Category:
LUNAR AND PLANETARY SCIENCE AND EXPLORATION
Document Type:
Conference Paper
Meeting Information:
American Geophysical Union Fall M 10-14 Dec. 2007; San Francisco, CA; United States
Financial Sponsor:
NASA Johnson Space C Houston, TX, United States
Organization Source:
NASA Johnson Space C Houston, TX, United States
Description:
2p; In English
Distribution Limits:
U P Unlimited
No Copyright
NASA Terms:
PLANETARY GEOLOGY; MIDLATITUDE ATMOSPHERE; MARS ATMOSPHERE; ICE; NORTHERN HEMISPHERE; SPATIAL RESOLUTION; POLYGONS; TERRAIN; POLAR REGIONS; STABILITY; SPECTRAL BANDS; RADAR TRACKING; MARS GLOBAL SURVEYOR
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Languages:
Full Audio
Simplified Chinese
Title: MEMORIES OF MARS
Genre: , ,
Developer:
Publisher:
Release Date: 5 June 2018
What the developers have to say:
Why Early Access?
&Early Access gives us the chance to release the game to fans and collect their feedback. This will help us add polish and direction in the final development stages. Community feedback during this Early Access phase will be critical in helping us deliver a game that fans will know and love for years to come.&
Approximately how long will this game be in Early Access?
&We plan to make big strides and conduct as many rounds of feedback as possible. We believe we can have a good final version candidate during 2018, once we have collected and digested as much of the feedback as we can. But we'll need to feel the game is at the right stage, and it is confirmed by the community feedback, then we will set a release date. Depending on the feedback we get, we may adjust this window of time to what’s best for the game and the community.&
How is the full version planned to differ from the Early Access version?
&The Early Access version of MEMORIES OF MARS will be fairly advanced so that the initial experience is actually fun! We will constantly update the Early Access version to add new content and refine existing elements of the game to get them right. In short, the full version will have more content, accessories, and options that won’t be in the initial Early Access version.Some of the additions we are considering are:More Areas to explore.New weapons and tools.More events and enemies.More customization options.&
What is the current state of the Early Access version?
&MEMORIES OF MARS will be a fully functional game upon its Early Access release but there will be areas that need refinement which is why we are entering Early Access. You can be assured that the initial gameplay will have a high baseline of playability.
For the specific features, you can check the &ABOUT THIS GAME SECTION&&
Will the game be priced differently during and after Early Access?
&At the current time this is undecided. It is within the realm of possibility that with all the content to be added during Early Access, we would consider raising the price once the game fully launches. This will be monitored during Early Access as we polish the game and the pricing strategy.&
How are you planning on involving the Community in your development process?
&100% yes! Community feedback and suggestions is at the heart of our Early access strategy. Their help will be instrumental in our effort to deliver the best game we possibly can. We’ll do this in several different ways. Community members should make sure they have signed up for the latest updates. Sign up at www.memoriesofmars.com for all the latest info and so you know when we do new surveys and release news on MEMORIES OF MARS.&
Available: 5 June 2018
Recent updates
Dear Martians,Today you may start seeing broadcasts from Mars across various communication channels (YouTube, Twitch, etc). The game is not live yet, but we have selected a few clones to play the game leading up to release. If you were a selected clone, remember you can find info and assistance on the official discord channel --&
. If not, don’t worry, the game releases this Tuesday, in a couple of days! You can watch those channels and help you fellow clones with hints and trips and perhaps discover some of the latest additions and undiscovered landmarks.Please, go back to your capsules for the time being. Mother will awake you very soon...Our Memories of Mars channels can be found below:Facebook: Facebook Group: Twitter: Official Discord Server (invite link): YouTube: Instagram: TwitchTV:
Dear Martians,It’s almost here! Memories of Mars launches into Early Access on the 5th of June on Steam for $29.99/?23.99/EUR29,99 depending on your region. The first Season for Memories of Mars begins in less than a week!Over the past few weeks we have run two closed betas where we put our technical infrastructures to the test while gathering valuable feedback from your game experience.We have been reading your comments and feedback to identify the topics that were more relevant to the community and we have asked you specific questions and run a survey to gather a deeper comprehensive insight.First of all we want to thank you, as we believe we are now on a better position to start our Early Access journey.We have designed Memories of Mars as a Survival game set on an amazing Martian setting. You will be able to explore a vast extension of the planet and find breathtaking natural views as well as discover mysterious remains of the human activity it once had. For Closed Beta we barely unlocked 60% of the current map and we know that there are many areas that users didn’t reach. So far the reaction of the community has been positive but we also understood that you want more: you want a bigger map and you want to see new points of interest. That is already in our Roadmap for early access and will be brought across the new seasons.Memories of Mars is an experience where you can freely design and build a base for you and your alliance that suits your needs according to your play style. On the little time players had on the beta we saw many bases and structures built (Check HexorMarhetbar’s super-high tower clip on twitch) and we noticed some people’s frustration when they found they had been raided. Don’t worry, once you dive in the game you will learn that there are ways to protect your base and its valuable content: you can pay base upkeep with flops to prevent the materials from decaying, you can develop and utilize reinforced construction elements and other defensive measures. But remember, you need to keep in mind that raiders will also figure new ways and tools to break into bases! Some risk always remains.We have also noticed your interest on having vehicles to explore and reach FLOP events faster or transport valuable resources. They are in development. Most likely they will not be available for Season 1 but we hope to share them with you very soon.At the heart of the game design you’ll find combat. It is clear from your feedback that the community enjoys combat, both against other human clones and against the robotic entities that still roam the land. But we have also understood that there are situations we need to monitor closely to improve combat fairness. We need to find a delicate balance between joyful PVP combat and allowing player to progress and construct their bases. You probably noticed how during Closed Beta we already implemented the first changes, generating a larger spawn area and more spawn points to mitigate players camping recently awoken clones. When we unlock the full map for Early Access there will be even more spawn points. We have taken notes of many of your suggestions and will be investigating further options.There are some players that request private or dedicated servers and want more PVE or even a story driven game to have an experience closer to single player. So, keeping in mind that MoM has always been designed with a multiplayer combat focus we can also state that some of these features are already on our roadmap and others are being considered. We will implement private or dedicated servers during the upcoming Early access seasons. And we will be incorporating additional PVE elements to the game as well as unveiling some of the backstory behind the abandoned mining operations. We will bring elements in these areas as much as we reasonably can while keeping our focus.You have expressed curiosity over the FLOP system and the FLOP events and we acknowledge that you have many suggestions and require more information.We will start offering information here in the forums on how to gather FLOPS and the variety of things you can accomplish with them. So far you have been exposed just to two types of flop events: “Terminal registration” and “Treasure hunt” but we already have other events in the pipeline to add variety and adventure.One of the features that has driven interest is the use of seasons in the game. There's already a post available in the community for you to read but just remember that each new season will be bringing new opportunities, elements and mechanics, making the map feel like a fresh new canvas. You will be able to carry over some of your experience across seasons thanks to a memory bank and you have the possibility of burying some of your most precious possessions in an emergency capsule for your future self to retrieve.That is just a summary of the most discussed topics, but we have an incredible amount of feedback and suggestions to work with: structures, tools, weaponry, resources and vital gauges, game balance and tweaks, etc, etc.As stated before we will consider and implement what is reasonably feasible as well as deliver features and surprises we have already planned.You and us have expectations, we are just starting a journey that shall bring pleasant surprises and things we need to improve. We keep or communication channels open and will be working with you to enhance the experience as we go.Stay with us, as we can hear MOTHER calling us already… The time to wake up has come.Be sure to sign up at
to get an exclusive camo pattern and a blueprint of a rifle. Offer expires at launch.Our Memories of Mars channels can be found below:Facebook: Facebook Group: Twitter: Official Discord Server (invite link): YouTube: Instagram: TwitchTV:
Report bugs and leave feedback for this game on the discussion boards
About This Game
100 years in the future, something happened on Mars. Once frequently visited, it is now abandoned with some left behind. MEMORIES OF MARS is a open world survival game set on the abandoned mining operations in the red planet, as the dream of exploiting and colonizing Mars has proven impossible. You play as a recently awoken clone who learns its lifespan is limited by the lethal solar flares that hit the surface of the planet every few weeks.Tasked with surviving the barren wastelands of Mars, players must explore the unforgiving Martian terrain and build a habitable homestead while fighting off against a variety of dangers including strange enemies, harsh environmental elements and other human clone survivors.Explore and Survive the Red Planet.EXPLORE AND DISCOVERExplore over 16 KM2 of the Martian landscape complete with deserts, craters, canyons, rocky planes, and mesas. Visit over 85 points of interest including abandoned towns, mines, industrial facilities, biodomes and vehicles.SURVIVELook after basic needs including health, stamina, nutrition, body temperature and oxygen. FIGHTEncounter and fight against unique NPCs and competing players that are always looking to interrupt your adventures. These NPCs are strange enemies left over from previous, failed, colonization efforts. Now they’ve gone rogue, and you’ll need to fend them off.BUILDBuilding your own base will be a cornerstone of your gameplay experience. Build a small base on your own, or collaborate and build a much larger base. Either way, a base is required to for the ultimate project – surviving Mars!EVENTS & FLOPSMemories of Mars contains a unique system of in-game events where players will converge and try to survive these events and thereby collect Flops. There are multiple ways to collect Flops, but beware because other players can rob, kill and loot your Flops.
System Requirements
Minimum:Requires a 64-bit processor and operating systemOS: 64-bit Windows 7Processor: Intel Core i5-4670K (AMD FX 6300). Additional Note: Only CPUs with the SSE4.2 instruction set are supported. See the Technical Support forum for more infoMemory: 8 GB RAMGraphics: Nvidia GTX 660DirectX: Version 11Network: Broadband Internet connectionStorage: 14 GB available spaceAdditional Notes: Install to SSD Drive
Recommended:Requires a 64-bit processor and operating systemOS: 64-bit Windows 10Processor: Intel Core i5-7600K (AMD Ryzen 5-1600)Memory: 16 GB RAMGraphics: Nvidia GTX 1060 6GB or betterDirectX: Version 11Network: Broadband Internet connectionStorage: 14 GB available spaceAdditional Notes: Install to SSD Drive
Games S.p.A. 505 Games, and the 505 Games logo are the registered trademarks of 505 Games S.p.A. and/or its affiliates. All rights reserved. The MEMORIES OF MARS name and logo are trademarks of 505 Games S.p.A. and may be registered trademarks in certain countries. All rights reserved. Developed by Limbic Entertainment GmbH.
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