I am en route to the star Rickelia to investigate two planets, the second and third of the system. Historian Robert Burkwell found references to them while decoding 117,000-year-old computer records, which places the colonization of the two worlds just prior to the trideckia pandemic that wiped out most of the human race throughout the galaxy. It is thought these two distant, self-sufficient ecosystems might have escaped contamination and maintained human populations that survived to the present day.
According to Dr. Burkwell, the planets, which were far from other occupied worlds even at the time they were colonized, were quite attractive to early settlement as they both supported a primitive type of vegetation that had produced an atmosphere with adequate oxygen levels for humans as well as deep soils suitable for growing domestic plants. The similarity of the life on both planets led scientists at the time to speculate that it had started on one planet and spread to the other via an asteroid strike.
The inner, warmer planet was colonized first and was initially used as a preserve for endangered carnivores. Carefully selected plants and trees quickly took over and formed thick jungles around the planet’s equator, into which were introduced animal species, both predator and prey. The experiment was so successful, the planet became a tourist destination, and cities began to spring up outside the jungles.
The outer, cooler planet was colonized later to grow food for the inner planet, and it was much more sparsely inhabited. Only useful plants and a few hardwood trees were brought there, and the only other life forms allowed were insects for pollination; earthworms, microbes and fungi for soil conditioning,...
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...t there is no sign of civilization or agriculture. I set down in a clearing where one of the largest cities used to be. I got out and explored a bit, but could not find any sign of human occupation. I wasn’t prepared to start a dig; that would have to wait for a later mission. The big question is -- what happened to them? Did they not escape the pandemic, or was there another reason they disappeared?
The forest around the clearing was chattering with life – insects, birds, mammals and amphibians all adding to the chorus. As I climbed back into the lander, I thought I heard something growl.
Conclusion: Living on a planet with an environment different from that which produced Homo sapiens would likely invoke selective forces that could have significant effects on modern human morphology and behavior, especially if gene flow to the planet is restricted.
LAMMER, H., OFT, J. H. B., COUSTENIS, A., KHODACHENKO, M. L., KALTENEGGER, L., GRASSET, O., PRIEUR, D., RAULIN, F., EHRENFREUND, P., YAMAUCHI, M., WAHLUND, J.-E., GRIEBMEIER, J.-M., STANGL, G., COCKELL, C. S., KULIKOV, Y. N., GRENFELL, J. L. & RAUER, H. 2009. What makes a planet habitable? The Astronomy and Astrophysics Review, 17, 181-249.
I’d first like to discuss the four closest planets to the Sun, Mercury, Venus, Earth, and Mars, also known as terrestrial planets. These planets are different from Jovian planets, mostly because of their solid surfaces. However, these are not the only explanations for the distinctions between the Jovian and Terrestrial planets. Terrestrial planets have few moons, no rings surrounding the planets, high densities, and usually slow rotations. These planets are special because of their heavy metal core, which explains their high densities. When it comes to topography, these planets are known for having valleys and craters, which make them different from the gaseous Jovian planets. The atmospheres of the four terrestrial planets range from very thick atmospheres to very thing atmospheres. Throughout this paper, I will go more in-depth into each of these planets and what makes each one of them
The evolution of the human species has significantly changed during the course of evolution to what is now the modern day Homo sapiens. Some of the changes that have occurred through the evolution are bipedalism, changes in body features such as brow ridges, and an increase in brain capacity.
planet that contains the only other sentient life forms every found by humans. The other
There are many speculations as to what has happened to the mysterious Lost Colony. One moment this colony is there, the next moment it is gone. Such a disappearance has dumbfounded even the most of researchers. Was this colony wiped out by famine? Was it attacked by a neighboring Native American tribe? Or, was it wiped out by prevalent disease? All of these questions pose as possibilities, as researchers try to unearth the secrets behind the strange disappearance of the Lost Colony.
The expedition, named after its supply ship, was a private venture, financed by public contributions augmented by a government grant. It had further backing from the Admiralty, which released experienced seamen to the expedition, and from the Royal Geographical Society. The expedition's team of scientists carried out a comprehensive scientific programme, while other parties explored Victoria Land and the Western Mountains. An attempted landing and exploration of King Edward VII Land was unsuccessful. A journey to Cape Crozier in June and July 1911 was the first extended sledging journey in the depths of the Antarctic winter. The Terra Nova Expedition, officially the British Antarctic Expedition, was an expedition to Antarctica which took place
... but similar areas. They put some in isolation and some went into a mixture of other species. It was discovered that the species in the mixture evolved more diversely than those that were in isolation. They also discovered that the mixture of species changed the way they used resources. This showed that the species that evolved together were more productive than the species in isolation. The final conclusion was that “species interactions can have a major effect on evolutionary dynamics, which can in turn influence ecosystems functioning” (Timothy G Barraclough).
[9] Ward, Peter D.; Brownlee, Donald (2000). Rare Earth: Why Complex Life is Uncommon in the Universe. Copernicus Books (Springer Verlag). ISBN 0-387-98701-0.
At the evolving planet exhibit you go through different parts of the exhibit to explain the origins of where we come from. The first part is “Early Earth” which is when earth was very unstable and dangerous, similar to other planets such as Mercury and Venus. During this time unlike other planets such as Jupiter who are dominated by CO2, hydrogen and helium. Earth’s atmosphere is dominated by Oxygen and N...
The members of the Homo genus possess a combination of unique features that distinguish them from other related species. At the time that each respective species was alive, they were able to walk upright on two legs, use their large brains for the benefit of their species, and could thrive in many geographically and climatically diverse areas of the world. One of the most mysterious quandaries in science is how the lineage of the Homo genus became so different from their primate relatives. Bipedalism, brain size, and location diversity all have a common link that may explain this difference – dietary evolution allowed humans to adapt to their surroundings, and in turn, become a more advanced species. The Homo diet evolved in relation to food availability and nutritional necessity. With the ability to maintain a proper diet, the species of the Homo genus were able to flourish and advance toward the development of modern Homo sapiens.
Scientists have dreamt over the possibility that it may be possible to live on another planet. Some think that Mars has that potential to support life, if it's hidden resources are uncovered and exploited to their full potential. There is even evidence that it once contained enough water that it had been possible to hold life. Think about it, what if we could transform it into such a place, even if only our children's children get to see any result? The following will describe Mars, present evidence of ice and water, give possible ideas for the future exploration of Mars, and give reasons for why it is important.
According to Darwin and his theory on evolution, organisms are presented with nature’s challenge of environmental change. Those that possess the characteristics of adapting to such challenges are successful in leaving their genes behind and ensuring that their lineage will continue. It is natural selection, where nature can perform tiny to mass sporadic experiments on its organisms, and the results can be interesting from extinction to significant changes within a species. Human beings are no exception to biological evolution. Like other organisms around the world, humans have significantly changed over time and have developed all sorts of diverse characteristics.
Earth is the element of life found here because with the sun, earth nurtures all plants and
Ward, Peter D. and Brownlee, Donald. Rare Earth -- Why Complex Life is Uncommon in the Universe. Copernicus, 2000
¬¬¬¬¬¬¬¬¬¬¬¬The Earth is a large and mysterious planet that we are just beginning to understand. There are many cycles and forces that go hand in hand in creating different environments on Earth. In this essay we will go over the five major cycles, the Atmosphere, Sun, Water/Ocean, Wind, and Earth cycles. We will also go over how the cycles interact and work together to form one of the most bio diverse planets in our galaxy.