/sci/ - Science & Math

contributing for hope of op to post more pics

Well? Right now, how many are there.

I'm only an astrophysicist, so I'd say maybe somewhere between 10-150.
>inb4 one

What are some common evolved things that you guys think have emerged many many times in the universe? What about the rarest?


Most likely eyes, and wings are quite common (seeing as they have evolved separately on many occasions.)

What else?

here's a good pic

Personally, I think that any planet that develops with a certain composition (IE, liquid water, oxygen, methane and other trace chemicals and exists for more then 10,000 years will inevitibly, maybe even sooner develop at least some form of life, and then depending on the gravity of the planet and warmth and solar stability it is inevitable that after a certain time (proabably around 2 billion to 6 billion years) some form of intelligent species will be developed.

Then you have to factor in those who don't kill themselves or those who get raped by an asteroid or gamma ray burst or sun fluctuations.


Personally, there's most likely around a 25,000 to 400,000 civilizations that are at around our level of intelligence. Which is reasonable since the FARTHEST possible detected thing we know of (narrow band radio signals) we can only detect them in around an 80 light-year radius (http://www.faqs.org/faqs/astronomy/faq/part6/section-12.html))
, and the milky way is 100,000 light-years around, we're on the end of the spiral, so we're much farther from the average stars then the ones closer to the middle, even if we were looking for them and listening to that particular place in the sky it would have to be broadcast from their planet right at the technological level we are at, 80 years back in time, to coincide with just now when we've started looking.

There's most likely a form of intelligence within 60 light years away.
At least 5 of the 54 Kepler found solar systems with earth planets (or ones with gas giants) in the habitability zones will have some form of basic life on them, or moons of the gas giants.

It's only a matter of time before we advance enough to explore them.