#complex life

[gwydionmisha]

Scientists Re-Create the Conditions That Sparked Complex Life

Evolution was fueled by endosymbiosis, cellular alliances in which one microbe makes a permanent home inside another. For the first time, bi

[burtontracks]

Naked 22 – 29

all tangled up 

and luvin it 

[xxanax-whore]

Sonder (n.) : the realization that each random passerby is living a life as vivid and complex as your own.

[startswithabang]

Finding Earth's Twin In Space May Be Impossible

“A world that's 60% larger than Earth would have about five times the mass, and that's far too great to be rocky with a thin atmosphere, even in the inner solar system. There are, realistically when we run all the estimates, likely to between forty thousand and maybe a hundred thousand of real Earth-like planets in Earth-like orbits around Sun-like stars. Out of 400 billion stars, those are terribly restrictive odds.

And remember, the real goal of seeking these planets is to find worlds capable of harboring Earth-like life. If that's the goal, don't look for a "twin" of Earth; we’re better off looking at the smaller, Earth-sized worlds around M-class stars. We're better off looking at Earth-sized worlds in the potentially habitable zones of their stars. The best bet for that is not to look for Earth-like orbits around Sun-like stars, but Earth-like planets in the right orbits around their stars. Of those possibilities, there are likely billions. That’s how we’ll get there.”

When we think of the idea of “Earth’s twin,” we inevitably think of a planet like ours orbiting a star like ours at the same distance and speed. Most planets are not rocky and Earth-sized; most stars are not like the Sun; most planetary orbits don’t have Earth’s orbital parameters. Yet the idea that a twin of our planet is out there, and that’s the most likely place to look for life, persists. Why would that be the case? Of the billions and billions of Earth-sized planets in our galaxy alone, only a very small percentage meet our naive “Earth twin” criteria. Yet there are billions meeting other criteria that may well be habitable, meaning that unless complex life is heavily restricted to worlds around Sun-like stars for hitherto undiscovered reasons, we may be looking for all the wrong things by seeking a twin to our world.

Finding a twin of our world may be practically impossible, and far less useful that we generally assume. The best place to look for life may not be around an Earth-twin at all.

[nirdosh-jagota]

The Journey of Evolution: From Single Cells to Complex Life - Official Nirdosh Jagota STEM Scholarship

Evolution is one of the most captivating narratives in the natural world, detailing how life began with the simplest forms and gradually evo

[cleveralienperspectives]

The perils of single-dish SETI

[qupritsuvwix]

Near collapse of Earth’s magnetic field 591 million years ago may have allowed complex life to thrive | CNN

Earth’s magnetic field was once 30 times weaker than it is today. This change may have played a pivotal role in the blossoming of complex li