Saturday, October 8, 2011

extra terrestrial :))

This extra terrestrial is all about ALIEN , they said discussion of extraterrestrial life centers on two distinct categories of such life. When most laypeople speak of "extraterrestrial life," they mean sentient life--that is to say, persons from another world, who are here either to reconnoiter, to trade, or to perform other such acts as a human explorer or soldier might perform. But this is not the sole category of life, nor even the sole category of life that, according to scientific speculation, might be found on another world or somehow come to ours. 


The other category of extraterrestrial life, besides the sentient, that has been the subject of speculation in scientific circles is the microbial.Consideration of the existence of extraterrestrial microbes is at least as important, if not more important, than is any consideration of the existence of extraterrestrial persons, races, nation-states, or civilizations.




Terrestrial is defined as life that does not originate from Earth. Referred to as alien life, or simply aliens, these hypothetical forms of life range from simple bacteria-like organisms to beings far more advanced than humans.


Alien life, such as bacteria, has been theorized to exist in the solar system and quite possibly throughout the Universe,they said that No samples of extraterrestrial life have been found. However, various controversial claims have been made for evidence of extraterrestrial life.Most UFO sightings are explained either as sightings of Earth-based aircraft or known astronomical objects or as hoaxes.


In addition to the biochemical basis of extraterrestrial life, many have considered evolution and morphology. SCIENCE FICTION has often depicted extraterrestrial life.
Extraterrestrial :
















The development and testing of theories about extraterrestrial life is known as exobiology or astrobiology the term astrobiology, however, includes the study of life on Earth, viewed in its astronomical context. Many prominent scientists consider extraterrestrial life to be plausible, but the scientific community does not currently recognize any verifiable evidence of such life.

I can't say if it is true cause it is so unexpected to see like that alien in true life.All i know that even if they truly exist in this world they may be from other planets they still one creatures of God, maybe has a purpose but i can't say what it is.


THE END :))




Friday, October 7, 2011

SOLAR SYSTEM.

As I search this topic,I felt excite,amazed and earn so many information.This topic is about Jupiter.Jupiter is the fifth planet from the Sun and the largest planet within the Solar System. It is a gas giant with a mass slightly less than one-thousandth of the Sun but is two and a half times the mass of all the other planets in our Solar System combined. Jupiter is classified as a gas giant along with Saturn, Uranus and Neptune. Together, these four planets are sometimes referred to as the Jovian or outer planets.We all know that Jupiter is biggest planet of the solar system. Jupiter is primarily composed of hydrogen with a quarter of its mass being helium it may also have a rocky core of heavier elements. Because of its rapid rotation, Jupiter's shape is that of an oblate spheroid (it possesses a slight but noticeable bulge around the equator). The outer atmosphere is visibly segregated into several bands at different latitudes, resulting in turbulence and storms along their interacting boundaries. A prominent result is the Great Red Spot, a giant storm that is known to have existed since at least the 17th century when it was first seen by telescope.Jupiter, the most massive planet in our solar system -- with dozens of moons and an enormous magnetic field -- forms a kind of miniature solar system. Jupiter does resemble a star in composition, but it did not grow big enough to ignite. The planet's swirling cloud stripes are punctuated by massive storms such as the Great Red Spot, which has raged for hundreds of years.









jupiter :))



jupiter is so large, in fact, that it has 2.5 times the mass of all the rest of the planets in the Solar System combined. Jupiter orbits from the Sun at an average distance of 779 million km. Its diameter at the equator is 142,984 km across; you could fit 11 Earths side by side and still have a little room. Jupiter is almost entirely made up of hydrogen and helium, with trace amounts of other elements.
Jupiter has been visited by several spacecraft, including NASA’s Pioneer and Voyager spacecraft. Cassini and New Horizons arrived more recently. Only the Galileo spacecraft has ever gone into orbit around Jupiter, and it was crashed into the planet in 2003 to prevent it from contaminating one of Jupiter’s icy moons.


Although Jupiter would need to be about 75 times as massive to fuse hydrogen and become a star, the smallest red dwarf is only about 30 percent larger in radius than Jupiter. Despite this, Jupiter still radiates more heat than it receives from the Sun; the amount of heat produced inside the planet is similar to the total solar radiation it receives. This additional heat radiation is generated by the Kelvin mechanism through adiabatic contraction. This process results in the planet shrinking by about 2 cm each year.When it was first formed, Jupiter was much hotter and was about twice its current diameter.

Jupiter has been explored on several occasions by robotic spacecraft, most notably during the early pioneer and Voyager flyby missions and later by the Galileo orbiter. The most recent probe to visit Jupiter was the Pluto-bound New Horizons spacecraft in late February 2007. The probe used the gravity from Jupiter to increase its speed. Future targets for exploration in the Jovian system include the possible ice-covered liquid ocean on the moon Europa.

LOOK!it is so amazing .. so great ! This is all about JUPITER.