Minggu, 10 Juli 2011

9 Mysteries of the Universe

1. Antimateri
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As the evil Superman, Bizarro, the particle (normal matter) also have opposite versions of themselves called antimatter. For example, an electron has a negative charge, but the antimatter positrons have a positive charge. Matter and antimatter annihilate each other when they collide and their mass is converted into energy via Einstein's equation E = mc2. Some futuristic spacecraft designs incorporate antimatter engine.

2. Radiasi Kosmik Latarbelakang



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This radiation is also called the Cosmic Microwave Background (CMB) which is the remnant radiation that occurs when the Big Bang gave birth to the universe. Was first detected in the 1960s as a radio noise that appear scattered throughout the universe. CBM is considered as the most important evidence of the truth of the Big Bang theory. Accurate measurements by the WMAP project showed that the CMB temperature is -455 degrees Fahrenheit (-270 Celsius).

3.Ekstrasolar Planet (Exoplanet)
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Until the early 1990s, we only know our own planet in the solar system. However, today astronomers have identified more than 200 extrasolar planets outside our solar system. Search the Earth both seem to have succeeded until now. Astronomers generally believe that better technology is needed to find some of the world as on earth.

4. Mini Black Hole
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If the theory of gravity "braneworld" a radically new and proven correct, then the thousands of mini black holes scattered in our solar system, each about the size of the atomic nucleus. Unlike black holes in general, these mini black holes are the remnants of the Big Bang and affect space and time in different ways.

5. Energi Vakum
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Quantum physics tells us that contrary to appearances, empty space is a bubble made ​​of subatomic particles "virtual" who are constantly being created and destroyed. The particles that occupy each cubic centimeter of space with a certain energy, based on the theory of general relativity, produces antigravity force that makes the space more and expand. Until now no one really knows the cause of the universe's expansion.

6. Gelombang Gravitasi (Gravity Waves)
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Gravitational waves are distortions fabric of space-time predicted by Albert Einstein's theory of general relativity. The wave propagates in the speed of light, but weak enough so that scientists hope to detect them only through a colossal cosmic events, such as the merging of two black holes as in the picture above. LIGO and LISA are two detectors designed to observe these elusive waves.

7. Materi Gelap (Dark Matter)
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Scientists believe that dark matter (dark matter) is the largest constituent of the universe, but can not be seen and detected directly by current technology. Neotrino candidates ranging from heavy to invisible black holes. If dark matter really exists, we must still require a better knowledge of gravity to explain this phenomenon


8. Quasar
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Quasar shimmered on the edge of the universe that we can see. Quasars release energy equivalent to the energy of hundreds of galaxies combined. It could be that quasars are a very large black hole in the hearts of distant galaxies. This image is the quasar 3C 273, photographed in 1979.

9.Tabrakan Antar Galaksi
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Apparently each other galaxies can "eat" each other. Even more surprising is the Andromeda galaxy is moving closer to our Milky Way galaxy. The picture above is a simulation of Andromeda and our galaxy collisions, which will occur in about 3 billion years.

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