Fligth Neil Armstrong the media tourist a spin through the latest movies on Armstrong Fligth Neil

Fligth Neil Armstrong the media tourist a spin through the latest movies on Armstrong Fligth Neil

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Interesting facts about space.

When Apollo 11 landed on the Moon in 1969, we were presented with our first human contact with the moon. The mission was able to accomplish the task of not only landing on the Moon, but also to return to the Earth with samples from the Moon. These samples along with subsequent presented us with answers regarding the composition of the Moon, which also gave us some basic facts that any theory about how the moon was created must answer/address. We learned:The Moon does not contain an iron core like our Earth does, due to the fact that the Moon's density is only 3.34 grams per cubic centimeter (compared to the Earth's which is 5.52 grams per cubic centimeter).Samples collected from the surface of the Moon reveal that it underwent extreme heat and baking, much more than what the Earth experienced.



and here is another

Dr. Lieber and his colleagues did a study to test the theory of full-moon "lunacy". They studied data on murders in Dade County of Florida which covered 15 years and a total of 1,887 deaths by homicide. When they compared the deaths with the phases of the moon, they found that the two rose and fell together for the entire 15 years! With the approach of a full or new moon, there was a sharp spike in the murder rate, and then a decline during the first and last quarters of the moon.



and finally

Of the hundreds of bewitching moons in our Sun's family, Titan is remarkable for being the only one boasting a dense atmosphere and large liquid reservoirs on its surface, rendering it in many ways more like the four rocky, terrestrial planets of the warm and well-lit inner Solar System. Indeed, both Earth and Titan possess atmospheres dominated by nitrogen--more than 95 percent nitrogen in Titan's case. However, unlike our Earth, Titan's atmosphere has very little oxygen; the remainder of its atmosphere is primarily composed of methane and trace quantities of other gases--such as ethane. At the truly frigid temperatures found at the Saturn system's great distance from our Sun, Titan's methane and ethane can exist on the surface in their liquid form.

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Although Europa was visited by the two spacecraft Pioneer 10 and Pioneer 11 in the early 1970s, and the twin Voyagers in 1979, these early flybys only produced grainy, dim images. However, these early pictures revealed enough about the little moon to make it intriguing. Pale yellow icy plains were seen in the Voyager images. The plains also tantalizingly displayed red and brown mottled areas. Long cracks were observed, running for thousands of miles over the shattered eggshell-like crust. On Earth, similar cracks would suggest such features as high mountains and deep canyons. But nothing higher than a few kilometers was seen on the moon. In fact, Europa is one of the smoothest bodies in our Solar System.



The Giant-Impact Theory, alternatively termed the Theia Impact, or Big Splash Theory, proposes that Earth's Moon was born from the debris remaining from a catastrophic collision, that occurred about 4.3 billion years ago, between the primordial Earth and an unfortunate protoplanet, that was about the size of Mars. The Earth's Moon-forming collision would have occurred when our Solar System was still forming during the Hadean eon. The Hadean eon occurred about 20 to 100 million years after our Solar System emerged from its frigid, dark natal cloud of gas and dust. The doomed impacting protoplanet, often called Theia, received its name in honor of a Titan in Greek mythology who was the mother of Selene, the Moon goddess. An analysis of lunar rocks, published in 2016, indicates that this catastrophic crash was a direct hit--causing a thorough mixing of both Earth-stuff and Theia-stuff. The Giant-Impact Theory is the favored scientific explanation for the birth of Earth's Moon.



This later-forming time line for lunar birth is reasonable, Dr. William Hartmann noted in the April 2, 2014 National Geographic News. Dr. Hartmann, a researcher at the Planetary Science Institute in Tucson, Arizona, was one of the first to propose the giant impact theory of lunar formation. However, he added that the new study might depend too much on the idea of using the last giant impact as a marker for when such events occurred in the history of our planet.