#Mars climate

[wayti-blog]

"It is a scientific certainty that Mars was once a much different place, with a denser atmosphere, warmer temperatures, and where water once flowed. Evidence of this past is preserved in countless surface features, ranging from river channels and alluvial deposits to lakebeds. However, roughly 4 billion years ago, the planet began to change into what we see today, an extremely cold and desiccated environment. Between all that, it is possible Mars experienced glacial and interglacial periods, which is evidenced by images like the one taken by the NASA Mars Reconnaissance Orbiter (MRO) shown above.

Evidence of glaciers on Mars includes landforms that resemble features on Earth that were shaped by the retreat of ice flows during interglacial periods. While most surface ice on Mars is confined to the polar ice caps, these landforms can be found in non-polar regions all across the planet. This feature was photographed by the High-Resolution Imaging Science Experiment (HiRISE), the main camera aboard the MRO. The full-sized image (shown below) offers a wider perspective and shows how the glacial deposit flowed downhill."

"These images are a reminder of Mars’ highly-dynamic climate, something it retains today despite all the changes it has experienced. These changes began roughly 4 billion years ago when Mars’ core region began to cool rapidly, which is believed to have arrested its global magnetic field. Henceforth, Mars’ warmer, denser atmosphere was slowly stripped away by solar wind, leading to global cooling and the gradual loss of its surface water. This led to Mars becoming the extremely cold and desiccated environment we see today."

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#mars #water #glacier #water on mars #mars climate #ancient history #solar system #space #universe #cosmology #life on mars #evolution #astronomy #science #discovery #mars seasons #mars atmosphere

[allpleasuer]

About Mars

About Mars: A Comprehensive Guide ALL PLEASUER Welcome to our in-depth exploration of Mars, the fourth planet in our solar system. This blog post will delve into various aspects of Mars, providing a wealth of information for both novice space enthusiasts and seasoned astronomers. We will cover a range of topics, including: Basic facts about Mars The type of planet Mars is Historical information…

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#Life on Mars #Mars #Mars and Earth #Mars and Mercury #Mars atmosphere #Mars canyons #Mars climate #Mars colonization #Mars exploration #Mars facts #Mars future exploration #Mars geology #Mars history #Mars human settlement #Mars in culture #Mars in Hindi culture #Mars in science fiction #Mars in solar system #Mars in Telugu culture #Mars methane mystery #Mars missions #Mars moons #Mars NASA missions #Mars polar ice caps #Mars rovers #Mars SpaceX missions #Mars surface features #Mars terrestrial planet #Mars volcanoes #Red Planet

[socialjusticeinamerica]

#traitor trump #crooked donald #republican assholes #conservative assholes #science #space science #mars #corporate greed #Republican climate change

[tomorrowusa]

Trump's offer to kill climate protection measures in return for about $1 billion in support from Big Oil has gotten little coverage in local media in swing states.

Make sure that people who care about climate change are aware of Trump's corrupt deal with already filthy rich fossil fuel industry. Don't assume people about Trump's deal with Big Oil.

Trump turns to oil industry for $1bn towards campaign as they draft executive orders for him to sign

#donald trump #big oil #fossil fuels #trump shakes down oil execs for campaign loot #mar-a-lago #republicans #political sleaze #climate change #election 2024 #vote blue no matter who

[shimomcdragon]

POV: oil

#hes ginna getcha!!! ooohhhh hes gonna getcha!!!!!! #mar 2 2024 #shimo's art #shimo's ocs #viktor willow #angel viktor #oc art #original character #oc #art #artists on tumblr #drew the normal version of his angel version finally #yeah hes so neoliberal <\3 #i imagine he sees a socialist or something and throws his little ball at the back of their head #i wanted to nightshade and glaze this but it didnt work on my shitty laptop so rip #i dont think i drew the background well enough but its supposed to be the orange skies of nyc during the canadian forest fires #that were caused by climate change

[jinx-rants]

Elon being a bit too honest about billionaires planning to exploit earth’s natural resources till all the birds go extinct….and then presumably escape to Mars

#billionaires hate birds #billionaires are an invasive species #eat the rich #anti capitalism #after seeing how the deep ocean deals with billionaires I’d like to let space have a turn #please Elon be on this first ship to mars #twitter implosion #wtf is x? #holy shit this man is so dumb #biodiversity loss #climate crisis #wtf is going on man for real

[lizardzap]

NASA: “You wasted 200 million dollars because you used imperial instead of metric?!??!?!!!!”

MCO: “Ah… umm…. bleh….” *explodes*

Here’s the Wikipedia article I was laughing my ass off reading this the other night

#17776 #lizart #mars climate orbiter #gijinka #nasa #17776 oc #spacecraft #my ocs #mco #17776 football

[refrigeratorsong]

an extraordinary and important video essay by the incredible Sophie From Mars. this piece is on climate change, community, and fungi. it is overflowing with information and empathy.

humanity can and will kill the wyrm of capitalism.

#The Uninhabitable Earth #How To Blow Up a Pipeline #The Mushroom at the End of the World #Climate Leviathan #climate change #communism #anarchism #the horrible ghost of Thomas Hobbes sucking my fucking dick #Sophie From Mars #video essay #Youtube

[jcmarchi]

Mars Sample Return a top scientific priority, Lunine testifies - Technology Org

New Post has been published on https://thedigitalinsider.com/mars-sample-return-a-top-scientific-priority-lunine-testifies-technology-org/

Mars Sample Return a top scientific priority, Lunine testifies - Technology Org

At the western end of Mars’ Jezero Crater, a river channel and pile of sediments resembling river deltas on Earth hold clues about how Mars evolved from a more Earth-like world to the barren, inhospitable surface seen today.

Since 2021, NASA’s Perseverance rover has collected more than 20 samples of rocks and sediments from the crater floor, delta fan and hills above it – resources that could answer crucial questions about what happened to the red planet’s climate and geology and improve understanding of our own.

But those samples could be stranded on Mars if Congress fails to provide adequate funding for the space agency to design and build the Mars Sample Return mission, Jonathan Lunine, the David C. Duncan Professor in the Physical Sciences and chair of the Department of Astronomy in the College of Arts and Sciences, testifiedm before a congressional subcommittee reviewing NASA’s science programs.

“The benefit of succeeding in bringing back rock and soil from an ancient riverbed on a planet 140 million miles away is that it will tell the world that this nation has the imagination, will and courage to accomplish just about anything,” Lunine said in written testimony. “And that message is priceless. To not complete Mars Sample Return – to leave the samples stranded on Mars – would be … a national disgrace.”

Lunine was one of four experts invited to testify at the U.S. House Subcommittee on Space and Aeronautics hearing titled, “Advancing Scientific Discovery: Assessing the Status of NASA’s Science Mission Directorate.” Watch a replay here.

Earlier this year, budget uncertainty led NASA to plan for the lower of two proposed funding levels for the mission and to lay off staff at its Jet Propulsion Lab in California. Current appropriations bills defer a decision on funding, which could range from $300 million to nearly $1 billion, while the agency reassesses the mission’s architecture.

Nicola Fox, associate administrator of NASA’s Science Mission Directorate, said that after an independent review board’s “sobering analysis” of the mission’s costs and challenges last fall, the agency would complete its internal reassessment this spring.

“It’s our willingness to acknowledge these challenges and overcome them, to conduct science in ways that have barely been imagined, that makes us NASA,” Fox testified.

Lunine called Mars Sample Return the most ambitious robotic program the United States has ever attempted, requiring challenging new technology and involving multiple NASA centers and the European Space Agency.

But having served as a member of an independent review board that examined the mission last year, Lunine said he’s “supremely confident” that it can and will be done despite budget pressures requiring difficult choices.

“It can be done because American engineering prowess is up to the task,” he told lawmakers. “It will be done because as a nation we surely will not simply walk away from a daring, highly visible and scientifically important challenge.”

Successive National Academies of Sciences decadal surveys have identified the mission as the top priority in planetary science, Lunine said, to help answer the questions: Did life begin on Mars? How did Mars dry up? Exactly when did it dry up?

Only instruments in laboratories on Earth, instruments far more precise and powerful than those carried by the Mars rovers, can precisely analyze the collected rock and soil samples to determine their composition and age, Lunine said. In the same way, the samples Apollo astronauts returned from the moon established a definitive chronology for the earliest history of the Earth-moon system – the program’s most profound scientific achievement, Lunine said. More than a half-century later, moon samples continue to be studied by increasingly capable instruments.

“The samples returned from Mars in the coming decade will be analyzed not only by scientists active today, but by scientists who are not yet born, using laboratory techniques not yet invented,” Lunine said. “These precious records of early Mars will be a lasting scientific treasure and a legacy of American technological prowess.”

Source: Cornell University

Mars gifts – the best space gifts from the Red Planet, ranging from Mars-themed clothes to genuine, certified meteorites from Mars.

#aeronautics #Analysis #architecture #Arts #astronauts #Astronomy #Astronomy news #billion #board #Born #challenge #channel #climate #college #Composition #Design #earth #engineering #European Space Agency #Funding #Geology #hearing #History #how #it #LED #life #mars #Mars rovers #message

[futurebird]

The Best of Earth (A short SF story)

In 100,000 years an alien ship enters our solar system. The Earth has no remarkable intelligent life, but it's a beautiful biodiverse planet recovering from some bad extinctions. The aliens don't notice the traces left by humanity right away, this is just a survey trip and not much monumental remains.

But, they do pick up a signal, coming not from Earth, but from Mars. "How strange?" they think. Mars is obviously the inferior planet for life. Earth is incredible. But, someone must go to investigate.

In fact, most of the aliens do not go to Mars, the least senior members of the team are sent, since tracing such signals is core to their mission…but also not much fun. Everyone else wanted to stay on Earth taking in the vast herds of wilder-beasts, the insects and plant life, the remarkable coral reefs.

The junior members of the team lament being back in space suits on a cold dead planet-- but such is the lot of a new explorer. They make their way to Olympus Mons where the signal originates.

At the summit they find a pit. A vast strip mine where robots labor to build more robots. Some of these robots maintain a building, patching and repairing it endlessly against the storms of the Martian surface. The junior research aliens enter the building. Inside they discover smaller more specialized robots and these too are set on maintaining the building in a perpetual shape of a human home, a large one, a mansion of the 21st century. 

Though there is art on the walls and books on the shelves, everything has been replaced thousands of times: All this effort, the vast strip mine, the fleets of machines have only one purpose: to prevent change.

Inside the house there is no air to breathe, the residents do not need it.

"Greetings Alien visitors! We always knew you would come to find us some day!" Say the three figures seated at the table in the dining room. "Who are you?" Ask the junior alien researchers. "We are the people of earth!" The machines proclaim. "It is sad, but we are all that survives."

The aliens share a look of skepticism between them. They saw an awful lot that survived better than this in the little time they got to spend on Earth–  (and speaking of earth they want to get back very badly. So, they try to rush through their interview with these weird machines.)

The machines tell of a civilization, an environmental crisis. How they, the very best of Earth went to Mars so all would not be lost. The alien researchers listen and nod along.

The machines of Mars tell the aliens how they "uploaded" their minds.

"Oh no." Says one alien involuntarily, but his friends nudge him to be quiet.

The machines of Mars do not notice. They have a great deal to say about themselves, and their inventions, and achievements, but the aliens are growing bored. (They just saw a video on their ship's social feed of senior officers diving & swimming in jewel blue waters with sea turtles & colorful fish. And there are the photos of the remarkable birds, and glaciers cooling at the edge of a boreal forest– The Earth is full of so much beauty… )

"Uh. We are honored to meet you and all!” Says one of the junior alien researchers doing her best to sound formal and commanding as an alien ‘ambassador’ ought to. She isn’t certain what an ‘ambassador’ is, but probably it’s some position of importance and ceremony and it's what the Mars machines keep calling them. “Yes we are honored– But- uh- now we must go." 

Somehow, they manage to extract themselves from the house Mars machine men... who happily cannot leave their compound– even though they try to follow the junior researchers, but the machine men of Mars need their maintenance machines, and they can go no further than the edge of the quarry. The alien researchers look back at the perfect incongruous house and the great mining pit beside it, and the machine men who are probably still talking of their achievements and memories.

"Do you think these count as gray goo? Do we need a quarantine?" Asks one alien as they make their way down the mountain. (And once the machine men are well out of earshot.)

"Nah! That's only if it's nanotech. I can't believe you almost told a group of immortality AIs the truth about uploading!"

"They would have never believed me!"

Having done the least desirable task in the mission, the junior alien researchers go back to Earth and they have a wonderful time. They never go back to Mars. And other than wondering how anyone could be so clueless, they never even really think about "The best of Earth" again. 

#story #fiction #science fiction #aliens #climate change #end of the world #elon musk #mars #AI #ecosystems

[spacenutspod]

The Space, Astronomy & Science Podcast. SpaceTime Series 27 Episode 36 *Mars Unveils a Colossal Volcanic Secret Astronomers have discovered a massive ancient volcano on Mars, hidden beneath an ice sheet in the planet's Tharsus volcanic province. This behemoth, which has eluded detection by orbiting spacecraft since 1971, could offer new insights into the Red Planet's geologic past and potential for life. The structure, tentatively named Noctus Volcano, stands over 29,600 feet tall and spans about 280 miles across. Its discovery near the labyrinthine Noctus Labyrinthus and the colossal Valles Marineris suggests a long history of volcanic activity and hints at the presence of glacial ice beneath its surface. *Europe's New Radar Mission to Monitor Climate Change The European Space Agency is gearing up for ROSAL, a cutting-edge Earth observation mission set to scrutinize the planet's oceans, land, and ice. With the largest deployable planar antenna array ever built, ROSAL will complement existing Copernicus Sentinel missions by using L-band radar to penetrate vegetation and ice, providing invaluable data for climate change research, agriculture, and geohazard monitoring. *International Space Station's Revolving Door It's been a bustling period aboard the ISS with multiple crew rotations. Axiom Space's third private mission has concluded, paving the way for their fourth venture and future space station modules. The arrival of NASA's SpaceX Crew-8 promises six months of groundbreaking experiments, including 3D organoid growth to study diseases. Meanwhile, SpaceX Crew-7's departure marks the end of a mission filled with over 250 experiments, ranging from immune cell behavior in microgravity to artificial retina production. *AI Robot Chemist Could Pave the Way for Martian Oxygen Production Scientists have developed an AI-powered robot chemist capable of extracting oxygen from Martian meteorites. This breakthrough suggests that future Mars missions might sustain human life and fuel rockets using the Red Planet's own resources. The AI robot's ability to identify and react chemicals to produce oxygen could revolutionize space exploration logistics and support long-term colonization efforts. For more SpaceTime and to support the show, visit our website at https://spacetimewithstuartgary.com where you can access our universal listen link, find show notes, and learn how to become a patron. Listen to SpaceTime on your favorite podcast app with our universal listen link: https://spacetimewithstuartgary.com/listen and access show links via https://linktr.ee/biteszHQ Support the show: https://www.spreaker.com/podcast/spacetime-with-stuart-gary--2458531/support For more space and astronomy podcasts, visit our HQ at https://bitesz.com 📋 Episode Chapters (00:00) Could a robotic chemist create oxygen from resources already on Mars (00:27) Giant ancient volcano and glacial ICE sheet discovered on Mars (07:13) European Space Agency planning new Earth observation mission to monitor climate change (16:23) Roselle is an operational mission that acquires data all the time (18:02) SpaceX launched a Dragon capsule bound for the International Space Station last month (20:48) Could robotic chemist create oxygen out of resources already available on Mars (22:55) High temperatures over 33 degrees Celsius increase risk of stroke, study finds (25:28) American politicians want to ban TikTok over concerns about propaganda on social media (27:34) Metta have decided they will not pay for news content on Facebook (28:50) Microsoft are about to make some big announcements with new releases

#agency #change #climate #copernicus #discovery #earth #european #exploration #glacial #ice #mars #martian #missions #monitoring #noctus #observation #radar #sentinel #space #volcano

[wayti-blog]

"Observations from China's Zhurong Mars rover have revealed that Martian sand dunes were likely formed by drastic shifts in prevailing winds after the planet’s last Ice Age."

"The study discovered that the Red Planet experienced a substantial climatic shift, which resulted in alterations in prevailing wind patterns.

This wind shift occurred around 400,000 years ago, coinciding with the end of Mars' last glacial era."

"Scientists have long speculated that the climate on Mars has shifted throughout time. However, obtaining firsthand data from the Martian surface to assess the planet's climatic processes over its history has been difficult. Fortunately, the rover's array of equipment made it possible to directly gather data from the surface of Mars."

article

related: "Zhurong rover data indicates existence of ancient northern ocean on Mars"

article

#mars #mars atmosphere #mars magnetic field #mars ice ages #water on mars #mars climate #life on mars #climate change #history #astronomy #cosmology #solar system #space #science #zhurong mars rover #mars rover #discovery

[mendely]

Who/which is your favorite Mars orbiter

Gotta be the one who went splat because of a mixup between metric units and freedom units. Iconic

#mars climate orbiter #space

[tomorrowusa]

Trump solicited about $1 billion from Big Oil at a fundraising conclave at Mar-a-Lago in return for future favorable treatment — if their filthy lucre helps him return to the Oval Office.

We lost four years fighting climate change during the previous Trump administration. A second term would do the planet grievous harm.

It's necessary to alert everybody concerned about the future of Earth of the danger of a second Trump presidency.

A new Washington Post report that Trump made explicit policy promises to a roomful of Big Oil executives—while urging them to raise $1 billion for his campaign—is a powerful story in part because it wrecks what’s left of that mystique. In case you didn’t already know this, it shows yet again that if Trump has employed that aforementioned knowledge of elite corruption and self-dealing to any ends in his public career, it’s chiefly to benefit himself. That counter narrative is a story that Democrats have a big opportunity to tell—if they seize on this news effectively. How might they do that? For starters, the revelations seem to cry out for more scrutiny from Congress. Democratic Senator Sheldon Whitehouse of Rhode Island, who has been presiding over hearings into the oil industry as chair of the Budget Committee, says it’s “highly likely” that the committee will examine the new revelations. [ ... ]

As the Post reports, an oil company executive at the gathering, held at Trump’s Mar-a-Lago resort last month, complained about environmental regulations under the Biden administration. Then this happened: Trump’s response stunned several of the executives in the room overlooking the ocean: You all are wealthy enough, he said, that you should raise $1 billion to return me to the White House. At the dinner, he vowed to immediately reverse dozens of President Biden’s environmental rules and policies and stop new ones from being enacted, according to people with knowledge of the meeting, who spoke on the condition of anonymity to describe a private conversation. Giving $1 billion would be a “deal,” Trump said, because of the taxation and regulation they would avoid thanks to him, according to the people. Obviously industries have long donated to politicians in both parties in hopes of governance that takes their interests into account, and they explicitly lobby for this as well. But in this case, Trump may have made detailed, concrete promises while simultaneously soliciting a precise amount in campaign contributions.

Just a mention that Tumblr formatting won't permit indentations inside indentations. As a substitute, I used red to depict double indentation.

Anyway...

For instance, the Post reports, Trump vowed to scrap Biden’s ban on permits for new liquefied natural gas exports “on the first day.” He also promised to overturn new tailpipe emission limits designed to encourage the transition to electric vehicles, and he dangled more leases for drilling in the Gulf of Mexico, “a priority that several of the executives raised.” “The phrase that instantly came to mind as I was reading the story was ‘quid pro quo,’” Whitehouse told me. He also pointed to a new Politico report that oil industry officials are drawing up executive orders for Trump to sign as president. “Put those things together and it starts to look mighty damn corrupt,” Whitehouse said.

Trump may just be a pile of orange flab with a porcine mouth and bad hair, but that doesn't mean he shouldn't be taken seriously. Among many other bad things, Trump is a figurehead for Big Oil. Oil companies are already busy composing executive orders for Trump to sign.

If elected, Trump would throw into reverse our transition to a decarbonized future, one that’s creating untold numbers of manufacturing jobs—including in the very places that Trump has attacked Democratic elites for supposedly abandoning—all in exchange for mega-checks from chortling fat cats right out of the most garish of Gilded Age cartoons. For good measure, some of that loot could help Trump secure elite impunity for his own corruption and alleged crimes. We can’t say we weren’t warned. Trump has told us all this himself.

Progressives toying with third party temptations need to be set right: The only way to defeat Donald Trump is to vote for Joe Biden.

There will NEVER be a President RFK Jr., a President Jill Stein, or a President Cornel West. Such vanity candidates are usually little more than eccentric freaks. The last time a non-Democrat or non-Republican was elected president was 1848. But with American democracy and the future of the planet at stake, self-indulgence at the ballot box this year could lead directly to dystopia.

#donald trump #climate change #the environment #mar-a-lago #carbon-palooza #big oil #campaign contributions from oil companies #quid pro quo #tax breaks for billionaires #republicans #second trump term #sheldon whitehouse #election 2024 #third parties #vote blue no matter who

[xdeathstar78]

Deny.

#mars #science #christianity #athiesm #global warming #climate change #mixed media #satanist #religion

[discrotter]

If you're scared about global warming, watch this video.

If you're scared our elections lead us nowhere, watch this video.

If you're scared we'll have no future, watch this video.

The world is not ending, if you want to know why, watch this video.

#leftism #socialism #marxism #anarchism #anarchy #communism #global warming #climate change #climate crisis #sophie from mars #video #video essay #optimism #doomerism #Youtube