Search for Alien Worlds

Mysteries of Deep Space: Part 5 of 6. They are strangers to us. Long as our world has lived among them, the stars have offered scant overtures, save their faint flickers across the void. They are messengers of a universe that seems utterly barren of other life. And yet, there is reason to believe our galaxy teems with planets.

Category:

Science & Technology

Tags:

• space
• planets
• mercury
• mars
• telescope
• asteroids
• solar system
• universe
• cosmic
• cosmos
• science
• milky way
• galaxy

[Mr007eds]

earths a 1 lucky bastard ;D

[xxxDave24xxx]

@13:14

@15:23 my name is david todd too :P

[djalladream89]

to maker6450...never know that ALIENS might have already found us, but can not reach us or they are not interested in being detected ;D

[sbergman27]

I was less than 1 year old when Mariner reached Mars. My "Big Downer" had to wait until I was 13 in 1976 when Viking arrived. I still remember staring glumly at that issue of Popular Science. Ironically, I feel more upbeat at 48, in 2011. Who'd ever have guessed my imagination would now be focusing upon subterranean Mars, the lakes of Titan, and the ice-covered lakes or oceans of Enceladus and Europa? Is there other life in our solar system? Time, and science, will tell.

[sbergman27]

@Boogyman4050 "6. stable iron core that maintains a reversible magnetic field for billions of years!" All the things you list have been very helpful to us. And it makes a great deal of sense to apply knowledge of what has worked for us to help us peck out a reasonably efficient first try at finding other life. But don't be overly confident about these requirements. We only have 1 data point.

I'll stop at the birth of Homo sapiens sapiens. And you can safely consider this a friendly challenge.

[sbergman27]

@Boogyman4050:

"4. A terrestrial body that maintains a Goldielock's zone for billions of years."

This is where m-dwarfs start lookking better than our sun. And Goldielocks zone is vague. On Earth, the only solvent shown to work is H2O. There are other possibilities for other climes. Ethane?

5. Here, I've absolutely got you. ;-) The primordial earth had CO2. Little to no O2. Almost all Earths O2 is produced by life.

*sigh* Next post. Thanks to much for your draconian policies, YouTube!

[Boogyman4050]

And MOST IMPORTANT... 6. stable iron core that maintains a reversible magnetic field for billions of years! Then you get the more complex things needed after those minimal things are achieved.

[Boogyman4050]

To get to human stage. We need the bare minimal things. 1. A stable star similar to our own. 2. A Jupiter sized gas planet within the system 3. Must be located in outer regions of the galaxy to aid in stability. 4. A terrestrial body that maintains a Goldielock's zone for billions of years. 5. stable liquid water surface and oxygen atmosphere.

[krobi94]

@MAKER6450

same here...hate em'

[MAKER6450]

@krobi94 oh.

wasnt sure who you were talking about.

Religious fanatics make me so damn mad.