Tuesday, March 31, 2015

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The Dark Web is a term that refers specifically to a collection of websites that are publicly visible, but hide the IP addresses of the servers that run them. Thus they can be visited by any web user, but it is very difficult to work out who is behind the sites. And you cannot find these sites using search engines.

Tuesday, March 24, 2015

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An Earth analog (also referred to as a Twin Earth, Earth Twin, Second Earth, Alien Earth, Earth 2 or Earth-like planet) is another planet (or world) with environmental conditions similar to those found on the planet Earth.

The possibility is of particular interest to humans as it is easily inferred that the more similar a planet is to Earth, the more likely it is of sustaining Earth-like complex extraterrestrial life and civilization. As such it has long been speculated and the subject expressed in science, philosophy, science fiction and popular culture. Advocates of space colonization have long sought an Earth analog as a "second home" while advocates for space and survival would regard such a planet as a potential "new home" for mankind.

Before the scientific search for and study of extrasolar planets, the possibility was argued through philosophy and science fiction. The Mediocrity principle suggests that planets like the Earth should be common in the universe, while the Rare Earth hypothesis suggests that they are extremely rare. Philosophers have pointed out that the size of the universe is such that a near identical planet must exist somewhere, such theories include the philosophy of Multiverse and the Twin Earth thought experiment.

Some scientific theories speculate that Earth analogs may have existed in our Solar System in the past. In the future, technology may be used by humans to artificially produce an Earth analog. In theory, terraforming could potentially create such a world. Multiverse theory suggests that an Earth analog could exist in another universe or even be another version of the Earth itself in a parallel universe.

On November 4, 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of sun-like stars and red dwarf stars within the Milky Way Galaxy.11 billion of these estimated planets may be orbiting sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists.

Recent scientific findings have greatly influenced the scope of the fields of astrobiology, models of planetary habitability and the Search for Extraterrestrial Intelligence. NASA and the SETI Institute have proposed categorising the increasing number of Earth-like planets found using a measure called the Earth Similarity Index (ESI) based on mass, radius and temperature. According to this measure, the planet currently thought to be most similar to Earth is Gliese 667C c (0.85). Findings have led scientists to report theories of billions of Earth-size planets within the Milky Way alone.

Saturday, March 14, 2015

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 Weather one of the most astonising forces on earth. Capable of both devastating power and spectacular beauty. Wherever you live on the planet weather shapes your world. Yet for most of us how it works is a mystery. To really understand weather you have to get inside it. This documentary takes a look at the most destructive natural forces on the planet.

Monday, March 2, 2015

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This new documentary was released on the SyFy channel "Aliens on the Moon: The Truth Exposed." This over two hours special will show us the truth about aliens on the moon. Robert Kiviat has put together this movie. He is well known for his work with Alien Autopsy Fact or Fiction? and Best UFO Cases Ever Caught on Tape. The 2014 UFO documentary will air on July 20th, so set your DVR's or mark it on your calendar. SyFy has made the claim never-before-seen photos from NASA will be shown in this documentary, revealing installations, factories, saucers, hangers and huge satellite dishes on the moon.