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Findthepin1

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    Where would you land on Mars?

    in Science & Spaceflight

    Posted · Edited by Findthepin1

    I was on Google Earth, Mars part. I assume you know how to get to Mars in Google Earth. You need to be viewing the CTX mosaic instead of the regular Mars globe in order to see the following stuff. There's polygon patterned ground at 45°54'5.56"N 17°51'26.91"E. The polygons here are usually over a hundred meters wide. There are what looks like glaciers everywhere surrounding that for miles. At 45°49'46.39"N 18°40'23.19"E there's a mesa with an obvious drainage basin with two major channels, and on the northwest corner of that same mesa is a crater that looks like it formed in mud. At 45°45'22.39"N 20°52'56.16"E there's more polygon ground, and it's more defined. You can clearly see it's patterned like that. At 46° 3'53.42"N 21°54'44.30"E there's a landform that looks like it was a lake. You can see an outflow channel at the north of it, that drains the basin into one of the main channels in the region. At 44° 2'44.28"N 46°17'19.83"E there's a mesa with a large crater, that was literally cut in half by what is probably moving ice. At 46°46'26.00"N 49°43'14.10"E is something, I'm not sure what but it looks like a geological boundary of some kind. I don't know what might have caused that, but it's between something that looks like it was/is viscously flowing and some underlying solid material. Lots of activity in this area, glaciers or otherwise, it's geologically significant. Look between any two mesas and you'll probably see signs of movement everywhere. I have yet to find a definite moraine. There are several candidates but they aren't obvious enough. You might want to check out the area around those coordinates. The easternmost glacier-like thing I've found in this continuous chain of them is at 31° 2'45.24"N 73°21'16.95"E and the westernmost is at 40°45'7.99"N 11°45'54.87"E. Also, I found a weird thing at 40°58'42.29"N 8°54'41.56"W, a straight ridge in a crater's ejecta field (another one that looks like it formed in mud). Can anyone tell me what this ridge is and how it formed?

    What ifs

    in Science & Spaceflight

    Posted

    I did the simulation for 320 years and a few months. Earth and the moon were stable at 2000000 and 1000000 km respectively. Venus' orbit moved inwards about 0.01 AU over the time period, and regularly shifts 0.01 AU in either direction near Saturn. Since this question only asked me to move Saturn, Earth, and Moon, I left all of Saturn's moons where they were and that resulted in a second asteroid belt between Jupiter and Uranus. Most of the things in the belt were in elliptical orbits. Titan became a new dwarf planet (it is larger than Mercury but is now accompanied in this simulated year 2334 by an asteroid belt, which it hasn't cleared so it is still a dwarf planet).

    Frankenstorm projectiles

    in Science & Spaceflight

    Posted · Edited by Findthepin1

    6 hours ago, magnemoe said:

    Pretty natural as it would flood all our cities, effect was 70 meter rise

    I assume you mean back during the end of the last glacial period. Now that you've mentioned it, it probably did flood all our cities. Or the equivalent settlements we had as cities back then. Bunches of stone huts or whatever, maybe there's some remains of buildings sitting around in the North Sea or the Persian Gulf. People have always built on the coasts because it's access to easy and plentiful food, water, and transportation. They should do submarine surveys to look for these things.

    Mission Proposals (to be proven in RSS and then brought to NASA)

    in Science & Spaceflight

    Posted · Edited by Findthepin1
    specifically 30 celsius and 0.55 atm

    Deorbit Jupiter. Better bring it much closer to the Sun, too cold there right now, right now you need to bring your towel :D.

     

    Actually, submarine drill things for Europa and Ganymede. Possibly also Callisto or Enceladus, or Triton. Definitely a Titan lander. Lots of balloons for Venus. Submarines for Titan and Earth. The oceans on both have been barely explored.

    First Priority: Earth, Venus, Mars

    Second Priority: Titan, Enceladus, Europa

    Third Priority: Ganymede, Callisto, Triton

    Fourth Priority:

    Moon Telescope: A collection of ISRU robots go to the Moon, to get minerals and build an exoplanet telescope out of them. The Moon doesn't have an atmosphere so it is easy to see the stars and fluctuations. Also the gravity is lower so structural integrity isn't as much of a problem. There is also essentially no light pollution. You can build a better ground-based telescope there than on Earth. It will be able to see the spectrum on exoplanets and get their atmosphere information. Maybe it will be able to see them as actual circles rather than bright dots. This is better than building a bigger Kepler or Hubble because you needed to launch Kepler and Hubble, which gave them a size limit. A ground-based telescope has basically no size limit, while you can only launch some amount of mass into space for a space-based telescope.

     

    About Venus, I am classifying it as a first priority for missions because: it is the closest planet to Earth, there is life on Earth that can survive only on what can be found in the upper atmosphere of Venus, stuff from one planet ends up on the other every time a large impact happens, and at 55 kilometers up the conditions are so Earthlike (30 degrees Celsius and 0.55 atm) you could probably have a potted plant survive for a couple days if it had protection from the sulphuric acid.  In fact, I'd be surprised if there wasn't already life in the clouds. If there was, IMO it wouldn't really be a big scientific discovery because it would very, very likely share a common origin with Earth life and would then say nothing about how prevalent life is in the rest of the universe. We already know life can tolerate the environment (hot springs-like, high-CO2), and we've extrapolated that life can get to those environments (panspermia) not dead (Surveyor 3 situation on impact ejecta instead of Surveyor 3).

    Where would you land on Mars?

    in Science & Spaceflight

    Posted

    Hellas Planitia. Lots of air, reasonable latitude, slope water line things, varied areology, etc. In particular, an interesting valley near Coronae Scopulus that I found on Google Earth. It has a flat bottom and channels drain into it. It looks like it was once a lake. It's near the lowest point on the planet, a crater I named Wilshire Crater (long story) in January this year. Unfortunately the IAU named it Badwater in March or April 2015.

     

    Pros:

    thicker air means more aerodynamics, increased functionality of parachutes, better atmospheric ISRU

    opportunity to study RSLs up close

    land on what seems to be a dry lake with channels

    it is close enough to the equator that it can get above freezing

    there is frost sometimes in Hellas Planitia

    Cons:

    More deltaV to orbit

    Potential contamination of environment

    Dark Gravity discussion

    in Science & Spaceflight

    Posted · Edited by Findthepin1
    *dimension

    Is it possible that there's nothing physical there? We haven't found any dark matter and we can only detect it through its gravity. It's not dark in the way that you could see it with a light, it literally seems to only affect the universe with gravity. Maybe it's just little bits of gravity floating around :D. Maybe it's in another dimension. 

    THANK GOD WE'RE BACK

    in Kerbal Network

    Posted

    I know how to insert images! In the bottom left corner there's a button that says "Insert other media". Click that, then click Insert Image from URL. Then paste the link to the image in a window it opens. Then click "Insert into post". Here are the results:

    ffb172abe30329368cdf103c11a0d0be.jpg:D

    Astronomers may have found giant alien 'megastructures' orbiting a star in the Milky Way

    in Science & Spaceflight

    Posted · Edited by Findthepin1
    720 days, not 730

    On 11/26/2015, 12:45:14, DBowman said:

    Are there currently scopes that can/will pick up occlusions? When is the next one due if it keeps up about two year period?

    April 2017. Although we really have no idea whether the two transits we saw are actually the same object yet, they could be two separate objects/swarms of objects that happened to transit 720 days apart. That's not as likely as a single object/swarm of objects, though.

    F1rst Snow!

    in The Lounge

    Posted

    I got a lot of snow (relatively for November) a few days ago. Maybe five centimeters. It marked the end of the longest snow-free autumn period I can remember (October 19-November 21, 32 days).
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