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Mars Thread?
http://forum.astra-nj.org/viewtopic.php?f=3&t=860
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Author:  JoeStieber [ Tue Oct 04, 2016 1:48 pm ]
Post subject:  Re: Mars Thread?

The link works fine for me, but I don't think this is a "spectrograph" of Mars. It's just an image captured in UV and mapped to visible colors. I then checked a little further and found the likely source of the image with some descriptive text that more fully explains things...

http://mars.jpl.nasa.gov/multimedia/ima ... ageID=8068

Author:  BetaDraconis [ Thu Oct 06, 2016 10:43 am ]
Post subject:  Re: Mars Thread?

What Happens If Someone Dies On Mars?

http://www.atlasobscura.com/articles/wh ... es-on-mars

Quote:
To dispose of a body, Mars explorers or colonists would have to resort to cremation or deliberate decomposition. Either is possible; Mars One already chosen cremation as its method for disposing of the dead. A cremation fire would require two resources that Mars missions are already looking to extract or manufacture on Mars: oxygen and fuel. But even if the settlement is not manufacturing fuel, there could be enough leftover from the trip there to feed a fire.

Author:  BetaDraconis [ Thu Oct 06, 2016 1:56 pm ]
Post subject:  Re: Mars Thread?

Study Predicts Next Global Dust Storm on Mars

http://www.jpl.nasa.gov/news/news.php?release=2016-256

Quote:
Shirley's 2015 paper in the journal Icarus reported finding a pattern in the occurrence of global dust storms when he factored in a variable linked to the orbital motion of Mars. Other planets have an effect on the momentum of Mars as it orbits the solar system's center of gravity. This effect on momentum varies with a cycle time of about 2.2 years, which is longer than the time it takes Mars to complete each orbit: about 1.9 years. The relationship between these two cycles changes constantly. Shirley found that global dust storms tend to occur when the momentum is increasing during the first part of the dust storm season. None of the global dust storms in the historic record occurred in years when the momentum was decreasing during the first part of the dust storm season.


I guess ASTRA needs to delay our field trip to Mars.

Author:  BetaDraconis [ Fri Oct 07, 2016 10:42 am ]
Post subject:  Re: Mars Thread?

NASA rethinks approach to Mars exploration

http://www.nature.com/news/nasa-rethink ... on-1.20758

Quote:
Jim Watzin, head of NASA’s Mars exploration programme in Washington DC, suggested the new approach to the red planet on 6 October at a virtual meeting of a Mars advisory group. “The era that we all know and love and embrace is really coming to an end,” he said. “It’s important to recognize that the future is not going to be the same as the past.”

Author:  BetaDraconis [ Mon Oct 10, 2016 8:15 am ]
Post subject:  Re: Mars Thread?

Phobos over Mars.

Image

Author:  BetaDraconis [ Mon Oct 10, 2016 12:10 pm ]
Post subject:  Re: Mars Thread?

Source for the previous image:

http://spaceref.com/mars/isro-mars-orbi ... -mars.html

Author:  BetaDraconis [ Tue Oct 11, 2016 2:26 pm ]
Post subject:  Re: Mars Thread?

It's a great leap forward!

President Obama Really Wants People To Live On Mars

http://www.npr.org/sections/thetwo-way/ ... ve-on-mars

Quote:
"We have set a clear goal vital to the next chapter of America's story in space: sending humans to Mars by the 2030s and returning them safely to Earth, with the ultimate ambition to one day remain there for an extended time," the president wrote in an op-ed published by CNN.


Barack Obama: America will take the giant leap to Mars

http://www.cnn.com/2016/10/11/opinions/ ... index.html

Full text of his op-ed piece at CNN.

Author:  BetaDraconis [ Thu Oct 13, 2016 9:11 am ]
Post subject:  Re: Mars Thread?

Mars Needs Movies

https://vimeo.com/141448925

A video about Mars in film.

Author:  BetaDraconis [ Fri Oct 14, 2016 11:00 am ]
Post subject:  Re: Mars Thread?

The Ancient Mars Water Story, Updated

http://www.manyworlds.space/index.php/2 ... y-updated/

Author:  BetaDraconis [ Tue Oct 18, 2016 6:23 am ]
Post subject:  Re: Mars Thread?

Ultraviolet Mars Reveals Cloud Formation

https://www.youtube.com/watch?v=0_arVt2Hdw8

9 second video.

Author:  BetaDraconis [ Tue Oct 18, 2016 12:16 pm ]
Post subject:  Re: Mars Thread?

ExoMars tomorrow, and yes Opportunity has a ringside seat!

Mars Landing! Ringside Seat Rover May Catch Schiaparelli Sky Show

http://www.leonarddavid.com/mars-landin ... -sky-show/

Quote:
"[T]here is a remote chance we could see it above the crater rim if the descent trajectory is long toward the east,” Rice added. “Bottom line is that we will be giving it our best effort and, hopefully, we get lucky."


Maps, photos, and more.

Author:  BetaDraconis [ Fri Oct 21, 2016 11:12 am ]
Post subject:  Re: Mars Thread?

Scientists say data from NASA's 1976 Mars landing need to be reconsidered for signs of life

http://www.sciencealert.com/scientists- ... ns-of-life

Quote:
"Even if one is not convinced that the Viking results give strong evidence for life on Mars, this paper clearly shows that the possibility must be considered. We cannot rule out the biological explanation," says NASA astrobiologist Chris McKay, senior editor of the journal Astrobiology, where the paper has been published.


Mmm, Viking-toasted martians.

Author:  BetaDraconis [ Fri Oct 21, 2016 9:38 pm ]
Post subject:  Re: Mars Thread?

For those who are curious, Schiaparelli crashed 54 kilometers from Opportunity. 10km more than Opportunity's current mileage over its 13 year mission.

https://twitter.com/elakdawalla/status/ ... 21/photo/1

http://www.planetary.org/blogs/emily-la ... e-ctx.html

Darned shame, I'd like to see Opportunity pay its respects.

Author:  BetaDraconis [ Mon Oct 24, 2016 3:47 pm ]
Post subject:  Re: Mars Thread?

'Spiders' on Mars: Citizen Scientists Investigate Strange Martian Terrain

http://www.space.com/34481-mars-spiders ... ation.html

Exactly what it says on the tin.

Author:  BetaDraconis [ Thu Oct 27, 2016 6:22 pm ]
Post subject:  Re: Mars Thread?

Schiaparelli crash site imaged by HiRISE

http://www.planetary.org/blogs/emily-la ... -site.html

Author:  BetaDraconis [ Mon Oct 31, 2016 5:22 pm ]
Post subject:  Re: Mars Thread?

Could an astronaut’s corpse bring new life to another world?

http://www.astronomy.com/news/2016/10/c ... ther-world

How likely is it?

Quote:
“We've pulled microbes out of permafrost, and there we're talking about organisms surviving around one million years in suspended animation. Especially if the trip is somewhere close, like to Mars, bacterial spores in the human body will survive for sure,” says King. “It's also possible that other, non-sporing bacteria could survive as well. I'm thinking about microbes like Deinococcus radiodurans, which we know can survive low levels of water and high amounts of ionizing radiation.”

Author:  BetaDraconis [ Mon Oct 31, 2016 7:35 pm ]
Post subject:  Re: Mars Thread?

Transient reducing greenhouse warming on early Mars

https://arxiv.org/abs/1610.09697

Quote:
The evidence for abundant liquid water on early Mars despite the faint young Sun is a long-standing problem in planetary research. Here we present new ab initio spectroscopic and line-by-line climate calculations of the warming potential of reduced atmospheres on early Mars. We show that the strength of both CO2-H2 and CO2-CH4 collision-induced absorption (CIA) has previously been significantly underestimated. Contrary to previous expectations, methane could have acted as a powerful greenhouse gas on early Mars due to CO2-CH4 CIA in the critical 250-500 cm^-1 spectral window region. In atmospheres of 0.5 bar CO2 or more, percent levels of H2 or CH4 raise annual mean surface temperatures by tens of degrees, with temperatures reaching 273 K for pressures of 1.25-2 bar and 2-10% of H2 and CH4. Methane and hydrogen produced following aqueous alteration of Mars' crust could have combined with volcanically outgassed CO2 to form transient atmospheres of this composition 4.5-3.5 Ga. This scenario for the late Noachian climate can be tested via future in situ and orbital studies of the martian crust.


Looking forward to 2018 and 2020's rovers testing for this!

Of course, presuming the Exomars Rover survives planetfall...

Author:  BetaDraconis [ Wed Nov 02, 2016 9:24 am ]
Post subject:  Re: Mars Thread?

Curiosity has spotted a weird metallic meteorite on Mars

http://www.sciencealert.com/curiosity-h ... te-on-mars

Quote:
Based on its appearance, it's likely the metallic meteorite became molten as it entered Mars' atmosphere, before hardening once it reached the surface - which could explain both the smoothness and some of the strange grooves that suggest the effects of weathering.


For one reason or another, it puts me in mind of this:

'Mars Flower' Photo Puzzles Scientists

http://www.space.com/19278-mars-flower- ... rover.html

Image

Why? I have no idea.

Author:  BetaDraconis [ Thu Nov 03, 2016 4:02 pm ]
Post subject:  Re: Mars Thread?

See the 1st Color Photos of Europe Mars Lander's Crash Site

http://www.space.com/34612-europe-mars- ... color.html

Pretty much what the headline says, tbh

Author:  BetaDraconis [ Mon Nov 07, 2016 5:32 pm ]
Post subject:  Re: Mars Thread?

A Martian Dust Storm

http://www.planetary.org/multimedia/spa ... -mars.html

Animated gif from The Planetary Society.

Author:  BetaDraconis [ Fri Nov 11, 2016 1:17 pm ]
Post subject:  Re: Mars Thread?

Scientists have spotted a strange 'funnel' on Mars

http://www.sciencealert.com/scientists- ... h-for-life

Not surprised it's in Hellas Basin, the lowest point on Mars and, if I recall correctly (IIRC), near the antipode of the Tharsis plateau which is home to Olympus, Ascraeus, Pavonis, and Arsia.

Author:  BetaDraconis [ Fri Nov 11, 2016 3:33 pm ]
Post subject:  Re: Mars Thread?

Mars' Mega-Drought Revealed in Meteorite Rust

http://www.seeker.com/mars-meteorite-wa ... 21823.html

Quote:
Although recent discoveries by NASA's Curiosity rover suggest liquid water infused with toxic perchlorate salts might condense on the surface, the reality is that the Martian atmosphere is still extremely arid. "(T)his moisture is much less than the moisture present even in the driest places on Earth," added Schröder.

Author:  BetaDraconis [ Tue Nov 22, 2016 7:41 am ]
Post subject:  Re: Mars Thread?

Did NASA Mars Rover Find a Signature of Past Life?

http://www.space.com/34795-mars-life-na ... rover.html

Quote:
Steven Ruff and Jack Farmer of the university's School of Earth and Space Exploration — shows that the nodular and digitate silica structures at El Tatio that most closely resemble those on Mars include complex sedimentary structures produced by a combination of biotic and abiotic processes.

Author:  BetaDraconis [ Fri Dec 09, 2016 5:51 pm ]
Post subject:  Re: Mars Thread?

Video and article about what it's like to fly over Mars

https://motherboard.vice.com/read/this- ... ce-of-mars

Author:  BetaDraconis [ Tue Dec 13, 2016 5:45 pm ]
Post subject:  Re: Mars Thread?

Just a photo

Testing a prototype Martian space suit at Kennedy Space Center

http://spaceexp.tumblr.com/post/1544336 ... at-kennedy

About the photo:

http://www.nationalgeographic.com/photo ... shot-mars/

Quote:

“The strange-suited man within a dust-clouded glass box confined inside a nondescript warehouse created an otherworldly scene,” says Mutchler. “Hollywood couldn’t dream up a set like this, but NASA did.”

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