human exploration of outer space science
To send manned spacecraft to explore outer space, the scientific community there has been a huge controversy. Scientists predict, according to the Earth's bio-mass extinction cycle, the shortest human in 5100, the longest will be 780 million years for some unknown disaster and the disappearance from the earth, so human beings must be prepared to find for the day to survive and multiply outside the "first Ark II. "
"Island" will often endangered species, human beings must be out of the Earth
Geological history shows that the Earth's mass extinction in the history of the event can be described as routine, tyrannosaurus exist only in the face of the earth a few million years, mammals average only multiply in the earth 200 million years.
The ancestors of modern Homo erectus only multiply in the earth 160 million years, and Neander only continued in the face of the earth in 3035 on the direction of the extinction. May have adapted to human beings on Earth, but the universe, the Earth is just a little "island." Based on scientific experience, any of the species confined to isolated islands will soon be included in the list of endangered animals.
To the extinction of mankind to save one of the ways that immigrants planet, however, not only have to spend astronomical expensive, but scientists are still unknown, the ability of human migration in the outer space before the first experience has been unpredictable a major disaster, leading to mass extinction.
One thing is certain, that is, after 50 million years, the sun will become a red giant, even when the sun will engulf the earth, it will be baked into coke, and human Prior to this, may have been in a asteroid or comet hit the market in the disaster, a drastic change of climate catastrophe, a nuclear disaster, even in a virus outbreak in the destruction.
Eight immigrants breed Mars: "600 years later, will have eight million Martian"
Even in 780 years, the 780 million years of human life as opposed to 50 million years for the life of the sun seems too short, which means that the sun will be thoroughly boiled before the Earth's oceans, mankind may disappear from the Earth . Therefore, some scientists said that human beings must become extinct before the first can be found in space on which the survival of the "second Earth", so that the human race to multiply there.
Scientists believe that human migration is the first step outside the planet Mars immigrants. Because Mars has a gravity, solar energy, as well as the survival of life on which all chemical substances, so Mars can become a self-sufficient human extraterrestrial bases. Mars 10 meters underground life, can help humanity from cosmic rays and the effects of solar storms.
Scientists suggested that the first immigrants to Mars by the four pairs of couples composed of 8, and frozen eggs and frozen sperm can be used for breeding future generations on Mars, increasing genetic diversity. If a pair of Mars and his wife have four children, then every 30 years, Mars will double the population doubled. 600 years later, Mars will have a population of 8,000,000.
Humanity to the "second Earth" by the current space needs of 35 million years
Astronomers in April 2008 found that the second Earth "GLIESE581c", is the first and extrasolar planet is similar to, and may have a good climate of planet rock. So, how can human travelers to the "second Earth" travel?
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