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  #1291  
Old 11-22-18, 11:35 AM
Zunardo Zunardo is offline
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Quote:
Originally Posted by Max Grumbleman View Post
1. There are less than a million people total who live within the Arctic Circle. When compared to places with high suicide rates (ex. Baltic nations; non-Arctic Scandinavia), rates at those latitudes are twice as high. The conditions found in these places will be NOTHING compared to Mars, where people will not be able venture outside without a suit! Cabin fever will get those who don't succumb to depression! ...... These things are EXTREMELY important to the human psyche, and Mars missions look to be completely devoid of them! The closet environment we have on Earth is Antarctica and even that is more mild!!
But - but - Matt Damon!

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Originally Posted by Max Grumbleman View Post
5. Astronauts who spend just a few months in space at near-zero gravity report damage to their eyesight. Mars has 38% the gravity of Earth. Consider astronauts, presumably people in their mid-to-late 30s or early 40s, spending the REST OF THEIR LIVES at 38% Earth's gravity!! The harsh reality is colonists are likely to go BLIND after a few years!! We will not send ANYONE to Mars until we remedy this problem!
Seriously, this is a very interesting aspect, and definitely will have to be researched and solutions created. As lotr10 suggests, a micro-gravity environment will help for short-term flight, but something more comprehensive needs to be developed to create a near 1G environment for flights anything more than, say 30 days.

A few years ago I was at a conference where astronaut Mark Kelley spoke, he talked about his record time aboard the ISS, especially the weird physical challenges he faced on his return. Along with changes in eyesight, blood pressure, muscle mass, etc, he said his skin and sensory nerves, particularly in the soles of his feet, had a very difficult time. He could not wear shoes for several weeks, and his earth clothing felt very irritating.
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  #1292  
Old 11-23-18, 08:18 AM
lotr10 lotr10 is offline
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Here's a nice review from NASA of all the physiological issues people might face in space travel:

https://www.nasa.gov/hrp/bodyinspace

It's a great review with dozens of links to more in depth articles on specific topics.

A couple of things to take away are:

* Many of these problems are associated with prolonged exposure to ZERO gravity. The issue for colonizing Mars, such as a deterioration in eyesight for some people, would be the long space flight at zero-G to move people to Mars. This could be alleviated by building faster space craft and/or providing spin gravity.

* Importantly there isn't strong evidence that living in a reduced gravity environment like Mars (1/3 earth G) would cause this problem.
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  #1293  
Old 11-26-18, 09:52 AM
lotr10 lotr10 is offline
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Here's a nice article on humanity's fascination with Mars and some of the cool things, including today's landing of the InSight probe, we're doing in exploring the Red Planet.

https://www.space.com/42518-why-we-k...t-landing.html
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  #1294  
Old 11-26-18, 09:56 AM
Zunardo Zunardo is offline
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We've had some spectacular naked-eye views of Mars this year. I don't recall the last time it was this noticeable, but I'm certainly savoring it.
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  #1295  
Old 11-26-18, 05:00 PM
lotr10 lotr10 is offline
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And it's safely landed on Mars:

https://www.businessinsider.com/nasa...ission-2018-11

InSight is on the ground!
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  #1296  
Old 11-27-18, 02:52 AM
FootballFan1795 FootballFan1795 is offline
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Twitter reactions to NASA Mars landing are out of this world

The first gritty photo, a NASA employee's hat and that elaborate handshake all come in for comment.

https://www.cnet.com/news/twitter-re...of-this-world/



From the article, also be sure to check out CNET's video: NASA's InSight sticks its Martian landing.
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  #1297  
Old 11-27-18, 07:13 AM
Zunardo Zunardo is offline
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Quote:
Originally Posted by FootballFan1795 View Post
Twitter reactions to NASA Mars landing are out of this world

The first gritty photo, a NASA employee's hat and that elaborate handshake all come in for comment.



.
LOL. Gene Kranz would've confiscated that hat so fast .....

Best comment to the photos: "My office is like that when I bring in donuts."
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  #1298  
Old 11-27-18, 06:36 PM
Max Grumbleman Max Grumbleman is offline
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Quote:
Originally Posted by lotr10 View Post
Here's a nice review from NASA of all the physiological issues people might face in space travel:

https://www.nasa.gov/hrp/bodyinspace

It's a great review with dozens of links to more in depth articles on specific topics.

A couple of things to take away are:

* Many of these problems are associated with prolonged exposure to ZERO gravity. The issue for colonizing Mars, such as a deterioration in eyesight for some people, would be the long space flight at zero-G to move people to Mars. This could be alleviated by building faster space craft and/or providing spin gravity.

* Importantly there isn't strong evidence that living in a reduced gravity environment like Mars (1/3 earth G) would cause this problem.
Come on, lotr10! You are smarter than this!! The problems with eyesight are related to long term exposure to a <1g living environment. Damage will be done at both near-0 g and .38 g!

I think we will find space much more accommodating to our colonization efforts. Our ships' living environments can be tailor-made to us and constructed in a relatively short time-span. Bringing a planet into a similar alignment may take millennia and run a cost several degrees of magnitude higher!

I am envisioning an artificial g space-station that would remain in orbit for the duration of a mission. The crew would take shuttles to a land-base and remain for a few months before returning to the station to recover. This could be done repeatedly for years and the crew would remain relatively healthy!
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  #1299  
Old 11-28-18, 09:50 AM
lotr10 lotr10 is offline
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Quote:
Originally Posted by Max Grumbleman View Post
Come on, lotr10! You are smarter than this!! The problems with eyesight are related to long term exposure to a <1g living environment. Damage will be done at both near-0 g and .38 g!

I think we will find space much more accommodating to our colonization efforts. Our ships' living environments can be tailor-made to us and constructed in a relatively short time-span. Bringing a planet into a similar alignment may take millennia and run a cost several degrees of magnitude higher!

I am envisioning an artificial g space-station that would remain in orbit for the duration of a mission. The crew would take shuttles to a land-base and remain for a few months before returning to the station to recover. This could be done repeatedly for years and the crew would remain relatively healthy!
Well have to agree to disagree about the planet/moon based colonization potential but I do agree that space based habitats using spin gravity can almost mimic earth like G conditions. Hollow out an asteroid and set it spinning and you would have a very nice living space inside.

Here's a nice look at space colonization, it's a bit retro but offers a decent summary of the riches to be found off earth:

https://theweek.com/articles/808840/...2stk1CZwXS7d_w
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  #1300  
Old 11-28-18, 02:50 PM
Yappi Yappi is offline
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Progress launch timelapse seen from space

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  #1301  
Old 11-28-18, 03:44 PM
FootballFan1795 FootballFan1795 is offline
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Quote:
Originally Posted by Yappi View Post
Progress launch timelapse seen from space

Awesome video, Yappi!
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  #1302  
Old 11-28-18, 03:49 PM
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Waiting for an official response from the flat earth congregation
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  #1303  
Old 11-29-18, 01:37 PM
FootballFan1795 FootballFan1795 is offline
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NASA Administrator to Announce New Moon to Mars Partnerships with US Companies

https://www.nasa.gov/press-release/n...h-us-companies

Quote:
NASA invites media to its headquarters in Washington for the announcement of new Moon partnerships with American companies at 2 p.m. EST Thursday, Nov. 29. NASA Administrator Jim Bridenstine will make the announcement, which will air live on NASA Television and the agency's website.
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The event also will be available through Facebook Live, Twitch TV, YouTube, and Twitter/Periscope.
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  #1304  
Old 11-29-18, 04:00 PM
eastisbest eastisbest is offline
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I'm fine with the Moon we got, I don't think we need a new one.
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  #1305  
Old 11-30-18, 01:31 PM
lotr10 lotr10 is offline
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Quote:
Originally Posted by FootballFan1795 View Post


NASA Administrator to Announce New Moon to Mars Partnerships with US Companies

https://www.nasa.gov/press-release/n...h-us-companies
Here's more on NASA's plans for a moon base and Mars expedition:

https://thehill.com/hilltv/rising/41...anned-presence

NASA Administrator Jim Bridenstine says the U.S. is within 10 years of having a continuous manned presence on the moon, which will lay the groundwork for expanding space exploration to Mars.

“Right now we’re building a space station, we call it ‘Gateway,’ that’s going to be in orbit around the moon — think of it as a reusable command module where we can have human presence in orbit around the moon. From there we want reusable landers that go back and forth to the surface of the moon,” Bridenstine told Hill.TV’s Jamal Simmons and Buck Sexton on “Rising.”

“We think we can achieve this in about 10 years, the idea being prove the capability, retire the risk, prove the human physiology and then go on to Mars,” he continued.


In addition to the items listed in the article the importance of a sustained human presence on the Moon will be that it will help us answer whether the medical issues Max brought up really will limit colonization of lower gravity moons/planets.
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  #1306  
Old 12-02-18, 10:17 AM
lotr10 lotr10 is offline
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Okay it's the Sun - not exactly a prestigious scientific publication - but damn they do have great pictures & videos in their articles!

https://www.thesun.co.uk/news/787361...y-golden-rock/

And no, the "shiny golden rock" is probably not real gold!
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  #1307  
Old 12-04-18, 09:15 AM
lotr10 lotr10 is offline
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Some more good stuff from the Sun:

https://www.thesun.co.uk/tech/788569...ufo-sightings/

Though how they know the aliens were "tiny" is beyond me. Still once you get by the Sun's entertaining title this article is a good summary of how any assumptions on alien technology & physiology are likely to be way off.
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  #1308  
Old 12-05-18, 04:53 AM
FootballFan1795 FootballFan1795 is offline
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And what a year it's been!

The top space stories of 2018: Mars, new moons and a mystery asteroid

https://www.cnn.com/2018/12/05/world...018/index.html

Quote:
This year was full of discovery throughout the cosmos.

We were dazzled by beautiful images from space telescopes; marveled at the discovery of planets, stars and objects; were intrigued by a lunar mystery solved by missing Apollo mission data; and saw the first confirmed image of the birth of a planet.

Things were just waiting to be found in our own corner of the universe, like 12 new moons around Jupiter, Earth-like characteristics on Pluto and a possible super-Earth orbiting a neighboring star. More studies suggested water on Mars and the moon. And astronomers found the fastest-growing black hole ever.

Of course, speculation abounded over where signs of life may be found outside Earth...
Includes cool video clips, too.
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  #1309  
Old 12-05-18, 08:38 PM
Max Grumbleman Max Grumbleman is offline
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Quote:
Originally Posted by lotr10 View Post
Well have to agree to disagree about the planet/moon based colonization potential but I do agree that space based habitats using spin gravity can almost mimic earth like G conditions. Hollow out an asteroid and set it spinning and you would have a very nice living space inside.

Here's a nice look at space colonization, it's a bit retro but offers a decent summary of the riches to be found off earth:

https://theweek.com/articles/808840/...2stk1CZwXS7d_w
I suppose, but wanting to agree to disagree on a fact of science is odd!

A hollowed out asteroid would be a trip!
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  #1310  
Old 12-06-18, 09:10 AM
lotr10 lotr10 is offline
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Originally Posted by FootballFan1795 View Post
And what a year it's been!

The top space stories of 2018: Mars, new moons and a mystery asteroid

https://www.cnn.com/2018/12/05/world...018/index.html



Includes cool video clips, too.
Great article! Now that's a best of the year story folks can enjoy.
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  #1311  
Old 12-06-18, 09:17 AM
lotr10 lotr10 is offline
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Quote:
Originally Posted by Max Grumbleman View Post
I suppose, but wanting to agree to disagree on a fact of science is odd!

A hollowed out asteroid would be a trip!
Here's a couple of fanciful articles laying out how a hollowed out asteroid might work:

https://worldbuilding.stackexchange....-out-asteroids


This article covers a broad range of potential space/moon/planet based colony's but has a nice section on hollowed out asteroids:

https://bigthink.com/paul-ratner/her...colonize-space
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  #1312  
Old 12-08-18, 08:32 AM
lotr10 lotr10 is offline
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Here's an informative article on how we're probing the solar system:

https://www.popularmechanics.com/spa...age-of-probes/


Alien conspiracy theorists have certainly ruined the word “probe.” But there's really only one kind of extraterrestrial probing happening in our solar system, and it’s us Earthlings who are doing it.

On Monday an intrepid spacecraft called OSIRIS-REx officially rendezvoused with a 500-meter-wide asteroid. The spacecraft will spend months at the asteroid, then descend to gather samples and return them to Earth.

Humanity witnessed another casual miracle of engineering just the week before—the landing of InSight on Mars. This probe will measure seismic Marsquakes and drill into the surface measure the thermal flux under the surface. This is a geology mission, one meant to gather never-before-seen data on the internal structure of the Red Planet.
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