Space!

Aug. 12th, 2008 09:58 am
pyat: (Default)
[personal profile] pyat
When I was a kid, outer space was chock full of stuff. It was like Flash Gordon or The Little Prince - new moons and asteroids every few miles. When I got older, the size and scope and emptiness of the solar system was impressed upon me. All that "If Earth was a peanut in Ottawa, then Jupiter would be a volley ball at the bottom of the Marianas Trench, and Pluto would be a mustard seed floating in a glass of water at the South Pole of the Moon," stuff.

But as time goes by, the solar system seems to be filling up again:

Green = Kuiper belt object
Orange = Scattered disc object or Centaur
Pink = Trojan asteroids trailing Jupiter
Yellow = Trojan asteroids trailing Neptune

The Asteroid Belt, moons, and rocky planets aren't even listed. And this is just the known list of objects in these categories. There are expected to be more than 70,000 Kuiper Belt Objects, many of them planet-sized. The inner bodies are mostly rocky objects with lots of heavy minerals. Further out, they're treasure troves of frozen chemicals - even water ice.

Also, as a kid I remember being perplexed by the weird fish-eye perspective of the Soviet Venera probe panoramas from the surface of Venus. Modern image processing has converted these distended photos into more comprehensible subjective views...


Yes, it's Venus! And, like every other planet we've landed on, it looks a lot like Sudbury in the 1970s!

Date: 2008-08-12 03:03 pm (UTC)
From: [identity profile] postrodent.livejournal.com
All that cold, dead, lifeless, _useful_ matter. Is there any real likelihood that life will appear on most of these places? Or should we just go ahead and turn them into computronium and Volkswagens, and feel just fine about doing so?
...it looks a lot like Sudbury in the 1970s!
Ha ha ho. ^_^

Date: 2008-08-12 03:13 pm (UTC)
From: [identity profile] zenten.livejournal.com
I think turning asteroids into computronium and Volkswagens would be cheaper.

Date: 2008-08-12 04:12 pm (UTC)
From: [identity profile] postrodent.livejournal.com
No, we need the asteroids to make the machines that will turn the "dead" planets into computronium and Volkswagens. Making the tools to make the tools.

Date: 2008-08-12 03:34 pm (UTC)
From: [identity profile] waiwode.livejournal.com
You could add one million planet sized Kuiper Belt Objects and space would still be vast, empty, and lonely, like Hwy 407 before dawn on Sunday.

I mean, that diagram is over 24,000,000,000 km across!

Still, here's something pretty wild: At out past 105AU, Veeger Voyager I is no longer on that map!

Doug.

Date: 2008-08-12 03:35 pm (UTC)
From: [identity profile] pyat.livejournal.com
Oh, fer sure. But in some spots, the saturation is to the point where a space traveler could visit a new destination every couple of days.

And hey, Voyager is still operating!

Date: 2008-08-12 05:42 pm (UTC)
From: [identity profile] rikoshi.livejournal.com
And hey, Voyager is still operating!

It must return someday to interface with the Kirk Unit.

Date: 2008-08-13 03:32 am (UTC)
From: [identity profile] hossblacksilver.livejournal.com
Yeah, but first it has to get back from the Delta Quadrant.

Date: 2008-08-12 05:27 pm (UTC)
From: [identity profile] mar2nee.livejournal.com
I hear there's darkmatter everywhere, too. And, I have no idea what that is.

At some point over the next several geological time frames, I bet all of the scifi writers will have imagined at least one thing that's real.

Why not? That's a lot of space - with stuff in it!

Date: 2008-08-12 05:56 pm (UTC)
From: [identity profile] pyat.livejournal.com
At some point over the next several geological time frames, I bet all of the scifi writers will have imagined at least one thing that's real.

*nods!* All you need is a big enough room, and a long enough time.

Date: 2008-08-12 05:41 pm (UTC)
From: [identity profile] rikoshi.livejournal.com
And, like every other planet we've landed on, it looks a lot like Sudbury in the 1970s!

Oh god, you just made my morning.

Date: 2008-08-12 05:53 pm (UTC)
From: [identity profile] pyat.livejournal.com
You got a Sudbury joke? Are you SURE you're from California?

Date: 2008-08-12 05:57 pm (UTC)
From: [identity profile] rikoshi.livejournal.com
I also know that 'Saskatchewan' comes from the Cree meaning "the place where you can watch your dog run away for three days."

Date: 2008-08-13 02:20 pm (UTC)
From: [identity profile] commanderteddog.livejournal.com
What are you talking about? Sudbury looked like that in 2003! Well, mostly. Actually it looked like this:

Image

But you have to admit, it's kinda a letdown. I mean, about Venus.

Date: 2008-08-13 02:24 pm (UTC)
From: [identity profile] pyat.livejournal.com
Yeah, they only have Dunkin' Donuts there. Bleah!

Date: 2008-08-13 02:34 pm (UTC)
From: [identity profile] commanderteddog.livejournal.com
Dunkin' Donuts doesn't even count as donuts. Them and Krispy Kreme. Barf.

You can take the brat out of Hamilton, but no amount of therapy can ease the Tim Hortons cravings. I've tried.

Date: 2008-08-14 07:41 pm (UTC)
From: [identity profile] shadow-maze.livejournal.com
It's still a whole lot of nothing, and that is just the solar system. Once you get past that, then you are really, really out with nothing.

I was just checking, and our Sun has 99.85% of the matter in the whole system, and Jupiter has more than 2/3 of the rest, leaving all those little dots with not too much to share. The whole asteroid belt doesn't add up to 1/1000th the Earth.

If you were out for a quick drive in your trusty flying car (100km or 60 miles an hour), just getting to the Moon takes 23 weeks, and a quick visit to the Sun takes 170 years, and those are very close compared to Kuiper Belt stuff. Even Pluto is closer and that would be 6745 years or longer.

I wouldn't plan on any space rock hopping without a really fast ship and a great deal of spare time...

Date: 2008-08-14 08:29 pm (UTC)
From: [identity profile] pyat.livejournal.com
Well, current engines can drive a probe the size of a cargo van at in excess of 60,000 kph, and if they had more leeway with nuclear engines, you'd get a long of life out of them. And, as I noted earlier in some places the density is such that you can fly to new places every couple of days.

Profile

pyat: (Default)
pyat

January 2020

S M T W T F S
   1234
567891011
12131415161718
19202122232425
2627 28293031 

Most Popular Tags

Style Credit

Expand Cut Tags

No cut tags
Page generated Jan. 24th, 2026 06:45 pm
Powered by Dreamwidth Studios