Thanks for the thread pickledegg.
I posted this last year, you can skip my mumble mumble, but at least check out the videos!
http://www.wickedfire.com/shooting-shit/54087-universe-you.html
NASA image of the day gallery
- Thread starter pickledegg
- Start date
Thanks for the thread pickledegg.
I posted this last year, you can skip my mumble mumble, but at least check out the videos!
http://www.wickedfire.com/shooting-shit/54087-universe-you.html
- The moon is further away than it appears with the naked eye, so also wider angles for impacts than you would think.
Scale image :
- The moon has something to do with the earth's orbit being elliptical, but I believe the shape of the earth has more to do with its own rotation.
- I might be misunderstanding you on the last one, but if you pour water in dirt you can watch your own tiny version of river beds and lakes being formed.
The original image isn't that clear or colorful. They start out in greyscale and then they have to zoom, color, etc. Here, I found a series of example pictures from one of the Cassini flyovers of Saturn's moons.
The original photo:
Some zoom:
Illustrators add Color to zoomed pic:
Some work in Photoshop or GIMP for finished product:
As you can see, it's a pretty involved process.
Lol, so every picture on NASA's site are artist's interpretations of what these outer space objects should look like with their own perspective flair? Riiiight....
1. they say the moon's craters are caused by meteor impacts. If the moon is in a tidal lock orbit with the earth. Having the same side always face the earth. Why does the side facing the earth also have impact craters?
2. Why are they round and not oval from angled impacts?
3.If the earth is slightly eliptical from the gravitational pull of the moon, why is the moon still round?
4. If the shapes of south america and africa suggests that the continents once fit together during the Jurassic period (Pangaea). How do they explain two sides of a winding river or lake matching the other side?
These things bother me.
1. This article says that due to natural processes the side that faces us became locked over time. The bodies rotate, and meteors come from any angle... so it doesn't really matter what's locked with what. The moon had plenty of time to be pelted by a multitude of meteors before this braking effect took place. The moon also has such thin atmosphere and so little surface activity that it's almost completely hopeless in 'cleaning' the surface from very old surface craters from a time when it wasn't locked in with the Earth.
Why does the Same Side of the Moon Always Face the Earth?
2. It's not because it's impossible for this to happen, and there's loads of irregular meteor impact craters if you look at surface pictures of the moon. My best guess is that due to speed of the meteor and the mass differential of the meteor/moon, the craters are mostly formed by the complete pulverization of the meteor and the released energy from the impact. It's not like a little pebble skidding across the sand(if that's what you envisioned with oval impacts), look here,
A Meteoroid Hits the Moon - NASA Science
3. It's much more than the shapes of the continents that the theory of Pangea stems from. The two sides match because it's the two sides of the same river, is this a trick question? lol.
4. The moon is much smaller than the Earth and had less time for its oval shape to become more pronounced like our planet- Therefore cooled much faster(and more spherically). The moon is still oval to a certain degree(as proved by satellite missions), and not a perfect circle. If you take out all other elements besides gravity, you'd be correct, the moon would be a near perfect sphere.
Not sure if you're serious, but no. The color is completely fake(based on what color scientists decided to assign to x element), but there's no interpretation the physical properties of what's being observed.
Always wanted one, need a balcony first though so it kind of snowballs out of control at that point. Missus thinks I'm fucking odd sometimes when I just sit out the back and look at the sky on a clear night.
This guy has done a lot of photos/videos of the moon and other objects close to Earth with his own 12" telescope, also has some videos of black helicopters buzzing his house (London I think) after posting them to youtube:
[ame="http://www.youtube.com/watch?v=VI3us5pXsQg"]YouTube- Broadcast Yourself.[/ame]
[ame="http://www.youtube.com/watch?v=VI3us5pXsQg"]YouTube- Broadcast Yourself.[/ame]
