A Quote by Neil deGrasse Tyson
There's a lot to do in space. I want to learn more about the greenhouse effect on Venus, about whether there was life on Mars, about the environment in which Earth and the Sun is immersed, the behavior of the Sun.
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I did not want to write a story about the invasion of Earth, so I had to create a race capable of living nearby, which meant to either on the Moon, on Mars, or on Venus. I picked Venus.
Venus and Mars are our next of kin: they are the two most Earth-like planets that we know about. They're the only two other very Earth-like planets in our solar system, meaning they orbit close to the sun; they have rocky surfaces and thin atmospheres.
Venus has a runaway greenhouse effect. I kind of want to know what happened there because we're twirling knobs here on Earth without knowing the consequences of it. Mars once had running water. It's bone dry today. Something bad happened there as well.
I therefore concluded, and decided unhesitatingly, that there are three stars in the heavens moving about Jupiter, as Venus and Mercury about the Sun; which at length was established as clear as daylight by numerous other observations.
It was magic, I felt the bond between us.
She was a jelly to my peanuts, Mars to Venus,
The Earth to my sun, moon and stars,
We added up mathematically...
It's like I had a bad habit, B!
If you accept learning as a dominant determination of your behavior, then all of a sudden you're open to the idea that, for instance, there are other people who are more educated than you about the environment, who you will learn from. It's kind of like you don't even have to believe that you know anything about the environment, but you do have to understand that your behavior has been determined by learning in the past.
Before the discovery of these [underwater] vents, all life on Earth, the key to life on Earth, was believed to be the sun and photosynthesis. But down there, there is no sun, there is no photosynthesis; it's chemosynthetic environment down there driving it, and it's all so ephemeral.
The frontier in space, embodied in the space colony, is one in which the interactions between humans and their environment is so much more sensitive and interactive and less tolerant of irresponsibility than it is on the whole surface of the Earth. We are going to learn how to relate to the Earth and our own natural environment here by looking seriously at space colony ecologies.
I honestly don't think about myself; it's more about my kids. They were both born in L.A., and they're like little beams of sun, little tornadoes, and they can't be in a confined space. And one of the things I love most about L.A. is the freedom there.
I am troubled by the lack of common sense regarding carbon dioxide emissions. Our greatest greenhouse gas is water. Atmospheric spectroscopy reveals why water has a 95 percent and CO2 a 3.6 percent contribution to the 'greenhouse effect.' Carbon dioxide emissions worldwide each year total 3.2 billion tons. That equals about 0.0168 percent of the atmosphere's CO2 concentration of about 19 trillion tons. This results in a 0.00064 percent increase in the absorption of the sun's radiation. This is an insignificantly small number.
Something bad happened on both Mars with its dried-up watercourses and Venus with its runaway greenhouse effect. Could something bad happen on Earth too? Our species currently turns row upon row of environmental knobs, without much regard to long-term consequences.
It's one of the big mysteries about Venus: How did it get so different from Earth when it seems likely to have started so similarly? The question becomes richer when you consider astrobiology, the possibility that Venus and Earth were very similar during the time of the origin of life on Earth.
There is a natural greenhouse effect that contributes to warming. Greenhouse gases trap heat and thus warm the Earth because they prevent a significant portion of infrared radiation from escaping into space.
In the real estate business you learn more about people, and you learn more about community issues, you learn more about life, you learn more about the impact of government, probably than any other profession that I know of.
NASA will send up a big sun shade that will be in orbit between the earth and sun and deflect 2 or 3 percent of the sunshine back into space. It would be cheaper than the international space station.
In my studies of astronomy and philosophy I hold this opinion about the universe, that the Sun remains fixed in the centre of the circle of heavenly bodies, without changing its place; and the Earth, turning upon itself, moves round the Sun.
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