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 Post subject: Re: Mars Thread?
PostPosted: Fri Dec 08, 2017 9:32 am 
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Mars atmosphere well protected from the solar wind

https://phys.org/news/2017-12-mars-atmo ... solar.html

Quote:
"It has long been thought that this induced magnetosphere is insufficient to protect the Martian atmosphere," says Robin Ramstad. "However, our measurements show something different."


Research on clay formation could have implications for how to search for life on Mars

https://theconversation.com/research-on ... mars-88507

Quote:
Now a new study by a group from Brown University, Rhode Island, published in Nature, further challenges the idea that clay on Mars formed just like that on Earth. The team has done experiments suggesting that the origin of most of Mars’s clays was even earlier. They considered the likely conditions on the hot, infant Mars, 4.5 billion years ago. At that time, the primordial magma ocean that once covered the planet was still cooling, and the first crystals had floated to the surface to grow Mars’s original “primary crust”.

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 Post subject: Re: Mars Thread?
PostPosted: Fri Jan 05, 2018 4:48 pm 
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Curiosity Rover Spots Weird Tube-Like Structures on Mars

https://www.space.com/39294-mars-rover- ... tures.html

Quote:
Vasavada reported that the eye-catching features are very small, probably on the order of a millimeter or two (0.04 to 0.08 inches) in width, with the longest of the features stretching to roughly 5 millimeters (0.2 inches). "So, they are tiny," he told Inside Outer Space.


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 Post subject: Re: Mars Thread?
PostPosted: Thu Jan 11, 2018 12:40 pm 
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Think Mountain Time’s Confusing? Try Living on Martian Time

https://www.smithsonianmag.com/smithson ... 180967799/

It's a podcast. Also IIRC, a Martian second is 1.027 Earth seconds long. I did the math ages ago and only have a vague memory. But basically you can use an Earth timekeeping device but you need to push it forward a little less than 40 minutes a day.

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 Post subject: Re: Mars Thread?
PostPosted: Thu Jan 11, 2018 3:30 pm 
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Features on Mars may be the edge of ice sheets over 100 meters thick

https://arstechnica.com/science/2018/01 ... d-on-mars/

Quote:
Indications of layering suggest they may trap some of the planet’s climate history.

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 Post subject: Re: Mars Thread?
PostPosted: Fri Jan 12, 2018 4:30 pm 
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If We Ever Get to Mars, the Beer Might Not Be Bad

https://www.nytimes.com/2018/01/12/scie ... -soil.html

Quote:
Martian soil is different from dirt on Earth. It is dense, full of iron and dries out quickly. But with some work, plants can grow well.


Keep in mind my little presentation about my martian garden a few months ago.

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 Post subject: Re: Mars Thread?
PostPosted: Fri Jan 19, 2018 10:14 am 
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Methane Seepage on Mars: Where to Look and Why

http://online.liebertpub.com/doi/full/1 ... .2017.1657

Quote:
We emphasize that generated methane could be ancient or recent, and either biotic or abiotic.


No paywall for this article, fyi.

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 Post subject: Re: Mars Thread?
PostPosted: Sat Jan 20, 2018 3:35 pm 
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Mars Volcano Died at Same Time As Dinosaurs

https://www.space.com/36138-mars-volcan ... saurs.html

Quote:
"We estimate that the peak activity for the volcanic field at the summit of Arsia Mons probably occurred approximately 150 million years ago — the late Jurassic period on Earth — and then died out around the same time as Earth’s dinosaurs," Richardson said in a statement. "It’s possible, though, that the last volcanic vent or two might have been active in the past 50 million years, which is very recent in geological terms."

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 Post subject: Re: Mars Thread?
PostPosted: Wed Jan 31, 2018 12:59 pm 
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This is the final surface image from NASA's Spirit rover (MER-A) captured March 1, 2010. All communication ceased 3 weeks later.


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 Post subject: Re: Mars Thread?
PostPosted: Thu Feb 01, 2018 10:28 am 
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Opportunity Sol 4626 flyby

https://www.flickr.com/photos/136797589 ... 833959933/

to scale...

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 Post subject: Re: Mars Thread?
PostPosted: Sat Feb 10, 2018 11:06 am 
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Tiny Crystal Shapes Get Close Look From Mars Rover

https://www.jpl.nasa.gov/news/news.php?feature=7057

Quote:
The features are about the size of a sesame seed. Some are single elongated crystals. Commonly, two or more coalesce into V-shaped "swallowtails" or more complex "lark's foot" or star configurations. "These shapes are characteristic of gypsum crystals," said Sanjeev Gupta, a Curiosity science-team member at Imperial College, London, who has studied such crystals in rocks of Scotland. Gypsum is a form of calcium sulfate. "These can form when salts become concentrated in water, such as in an evaporating lake."

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 Post subject: Re: Mars Thread?
PostPosted: Sat Feb 17, 2018 5:50 pm 
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Curiosity Rover Discovers Clue in 'Rock Stripes' That Mars Has Its Own Water Cycle

https://www.outerplaces.com/science/ite ... ater-cycle

Quote:
"Perseverance Valley is a special place, like having a new mission again after all these years. We already knew it was unlike any place any Mars rover has seen before, even if we don't yet know how it formed, and now we're seeing surfaces that look like stone stripes. It's mysterious. It's exciting,"

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 Post subject: Re: Mars Thread?
PostPosted: Mon Feb 26, 2018 6:40 pm 
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If Bacteria Can Survive the Atacama, Maybe They Can Survive Mars

http://blogs.discovermagazine.com/d-bri ... -survival/

Except for the whole 1/100th Earth atmosphere pressure, increased radiation, perchlorates and other interesting compounds sprinkled throughout martian regolith.

Why... if Mars was just a little more Earthlike then maybe life on Earth could thrive on Mars!

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 Post subject: Re: Mars Thread?
PostPosted: Wed Feb 28, 2018 3:24 pm 
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Clay Formation Study Leads to New Model for Early Martian Climate. How "Warm" is Warm?

https://www.seti.org/clay-formation-stu ... rm-is-warm

Probably around 20-40 °C.

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 Post subject: Re: Mars Thread?
PostPosted: Mon Mar 26, 2018 6:33 pm 
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NASA fungus problem puts theory of 'Martian mushrooms' on toast

https://www.theregister.co.uk/2018/03/2 ... s_problem/

Quote:
Festering fungus has become a problem way down in the bowels of NASA, and could lead to false identification of extraterrestrial material.

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 Post subject: Re: Mars Thread?
PostPosted: Fri Apr 20, 2018 7:39 pm 
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The Opportunity selfie: 5000 Sols in the making

http://www.planetary.org/blogs/guest-bl ... -5000.html

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 Post subject: Re: Mars Thread?
PostPosted: Sun Apr 29, 2018 11:22 am 
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Life on Mars? Scientists close to solving mystery of the red planet

https://www.theguardian.com/science/201 ... as-orbiter

Quote:
Mission to find source of methane detected in atmosphere may have an answer in months, researchers believe

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 Post subject: Re: Mars Thread?
PostPosted: Wed Jun 06, 2018 10:24 pm 
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Ta-dah!

NASA has called a press conference to announce a discovery on Mars.

http://bgr.com/2018/06/05/nasa-mars-con ... vent-2018/

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 Post subject: Re: Mars Thread?
PostPosted: Thu Jun 07, 2018 6:38 pm 
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Curiosity Rover Finds Organics Hidden In Mars’ Mudstones And Methane In Its Atmosphere

http://blogs.discovermagazine.com/d-bri ... tmosphere/

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 Post subject: Re: Mars Thread?
PostPosted: Sat Jun 23, 2018 8:23 am 
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The Rule Of Two: Why Finding A Martian Microbe Matters

https://www.forbes.com/sites/billrether ... 8e30521d3c

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 Post subject: Re: Mars Thread?
PostPosted: Sun Jul 22, 2018 6:20 pm 
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Martian Dust Storm

http://www.esa.int/spaceinimages/Images ... dust_storm

Amazing photo

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 Post subject: Re: Mars Thread?
PostPosted: Wed Jul 25, 2018 7:52 pm 
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DOUBLE HEADER!

Deep within Mars, Liquid Water Offers Hope for Life

https://www.scientificamerican.com/arti ... -for-life/

Dust on Mars Likely Comes From Massive Volcanic Deposit

http://blogs.discovermagazine.com/d-bri ... c-deposit/

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 Post subject: Re: Mars Thread?
PostPosted: Sat Jul 28, 2018 8:54 am 
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Ahem...


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 Post subject: Re: Mars Thread?
PostPosted: Sun Jul 29, 2018 6:20 pm 
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HUMOR

World-Eating Leviathan Awoken From 500-Million-Year Slumber In Martian Underground Lake After Feeling Sonar Disturbance

https://www.theonion.com/world-eating-l ... 1827928509

HUMOR

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 Post subject: Re: Mars Thread?
PostPosted: Mon Jul 30, 2018 12:03 am 
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A video illustrates Mars' retrograde motion. Accompanied by otherwordly music.

https://www.bing.com/videos/search?q=Ma ... ORM=WRVORC

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