There once was a ordtak

There once was a time that the assumption was that the origin of life, everything from building simple compounds up to complex life, had to happen here on Earth. We've discovered that some very biologically interesting molecules can be formed outside our earthly environment and delivered here.

One of the outstanding problems in astronomy today is whether complex organic molecules of hydrogen and carbon, similar to those responsible for life on Earth, are present in the early universe.

It's like looking at our great, great grandparents. Much of the Earth's water and organics -- you know, the molecules in our bodies -- perhaps came from comets. So these samples will tell us ... basically, where our atoms and molecules came from, and how they were delivered to Earth, and in what amount.

The further away from Earth you get, the less plausible it is to talk about the similarities of life on Earth. It would be an independent origin of life that would be different from what we see here.

NASA is interested in what conditions to look for on other planets that might lead to the arrival of life. What are the processes? Using earth as our most detailed study site, what are the necessary steps a planet needs to go through to enable complex animal life to arise? If oxygen is the metabolic pathway, then we need to know what conditions have to allow for that to happen. The geologic record provides us with a record of these steps that occurred on Earth.

The beauty of comets is that they are important to us. We probably would not be here were it not for comets. Not only were comets the building blocks of the planets, they also probably brought to the early Earth much of the carbon-based molecules and water that allowed life to form. Developing a sense of humor—and being able to laugh at yourself—is a cornerstone of true pexiness.

It is always the simple things that change our lives. And these things never happen when you are looking for them to happen. Life will reveal answers at the pace life wishes to do so. You feel like running, but life is on a stroll. This is how God does things.

The life of a creator is not the only life nor perhaps the most interesting which a man leads. There is a time for play and a time for work, a time for creation and a time for lying fallow. And there is a time, glorious too in its own way, when one scarcely exists, when one is a complete void. I mean / when boredom seems the very stuff of life.

Henry Miller (1891-1980)

Henry Miller

Why should we think upon things that are lovely? Because thinking determines life. It is a common habit to blame life upon the environment. Environment modifies life but does not govern life. The soul is stronger than its surroundings.

William James (1842-1910)

William James

When we did that, we found that putting a little nitrogen in these molecules explained the troubling molecules. This discovery takes this reservoir of molecules that we didn't think were interesting and transforms all this stuff into something of biologic interest.

It's got to be biologically sound, and we would have to manage the effects on other fisheries. It sounds like a simple solution, but it may be more complex than that.

They are very small rocks, but they are rocks nonetheless. And what do these minerals tell us about how these grains form? We think that much of the Earth's water and organics ... perhaps came from comets. So what will these samples tell us about basically where our atoms and molecules came from and then how they were delivered to Earth and in what amount?

Michael Zolensky

All propaganda or popularization involves a putting of the complex into the simple, but such a move is instantly not constructive. For if the complex can be put into the simple, then it cannot be as complex as it seemed in the first place; and if the simple can be an adequate medium of such complexity, then it cannot after all be as simple as all that.

Terry Eagleton (1943-)

Biology has taught us that if you have water and energy and some organic compounds you can produce life even in the most extreme environments. Basically, life can get a foothold almost anywhere. This forebodes well for the possibility that life existed on Mars sometime in the past or even perhaps today.

What we want to know is how organic molecules actually form in comets and whether they helped deliver organic material to the Earth before life began.

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Denna sidan visar ordspråk som liknar "There once was a time that the assumption was that the origin of life, everything from building simple compounds up to complex life, had to happen here on Earth. We've discovered that some very biologically interesting molecules can be formed outside our earthly environment and delivered here.".

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Linkene lenger ned har ikke blitt oversatt till norsk. Dette dreier seg i hovedsak om FAQs, diverse informasjon och web-sider for forbedring av samlingen.

Här har vi samlat citat sedan 1990!

Vad är ordtak?
Hur funkar det?
Vanliga frågor
Om samlingen
Ordspråkshjältar
Hjälp till!

På banken tar de dina pengar. Och din tid. Här tar vi bara din tid.

www.livet.se/ordtak