Earth

Earth is the third planet from the Sun. It is the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets. It is sometimes referred to as the world or the Blue Planet.[23] Earth formed approximately 4.54 billion years ago, and life appeared on its surface within its first billion years.[24] Earth's biosphere then significantly altered the atmospheric and other basic physical conditions, which enabled the proliferation of organisms as well as the formation of the ozone layer, which together with Earth's magnetic field blocked harmful solar radiation, and permitted formerly ocean-confined life to move safely to land.[25] The physical properties of the Earth, as well as its geological history and orbit, have allowed life to persist. Name and etymology In general English usage, the name earth can be capitalized or spelled in lowercase interchangeably, either when used absolutely or prefixed with "the" (i.e. Heat

The Number 9 | The Secret Knowledge of The Ancients Number Nine Code 911 The number 9 is the last number in a base 10 system which is the last and limit of all that is. Nine is a number which has many interesting qualities that other numbers do not have and has been used to hold a hidden code that affects every person on earth. If you think nine is just another number, you are in for a big surprise. The number 9 is very interesting and suspect looking like an upside down 6. There are small coincidences that all add up to something universally amazing which was created for us then given to mankind through Enoch, which he wrote down on stone tablets and passed down to his great grandson Noah which built the arc. The 9 code is everywhere for us to see if we are willing to search for it. The Intelligent design of our universe is geometrical and congruent forming beautiful shapes and images with the number 9 as a proof of concept stamp on it given by God. Use this ancient method to get understanding and understanding why this happens is the key Mr.

Mars Animation of Mars' rotation from the vantage of an observer who moves south, then north, to hover over both poles, showing the planet's major topographic features. Mars is currently host to five functioning spacecraft: three in orbit – the Mars Odyssey, Mars Express, and Mars Reconnaissance Orbiter – and two on the surface – Mars Exploration Rover Opportunity and the Mars Science Laboratory Curiosity. Defunct spacecraft on the surface include MER-A Spirit and several other inert landers and rovers such as the Phoenix lander, which completed its mission in 2008. Observations by the Mars Reconnaissance Orbiter have revealed possible flowing water during the warmest months on Mars.[25] In 2013, NASA's Curiosity rover discovered that Mars' soil contains between 1.5% and 3% water by mass (about two pints of water per cubic foot or 33 liters per cubic meter, albeit attached to other compounds and thus not freely accessible).[26] Physical characteristics Size comparison of Earth and Mars. Soil

Structure of the Earth Introduction The Earth is an oblate spheroid. It is composed of a number of different layers as determined by deep drilling and seismic evidence (Figure 1). These layers are: The core, which is approximately 7,000 kilometers in diameter (3,500 kilometers in radius) and is located at the Earth's center. The core is a layer rich in iron and nickel that is composed of two layers: the inner and outer cores. Figure 2: Structure of the Earth's crust and top most layer of the upper mantle. The mantle is almost 2,900 kilometers thick and comprises about 83% of the Earth's volume. The lithosphere is a layer that includes the crust and the upper most portion of the asthenosphere (Figure 2). Figure 3: The addition of glacial ice on the Earth's surface causes the crust to deform and sink (a). The topmost part of the lithosphere consists of crust. The continental crust is 20 to 70 kilometers thick and composed mainly of lighter granite (Figure 2). Isostacy Further Reading PhysicalGeography.net Citation

Astrological age There are two broad approaches about the effects upon the world due to the astrological ages. Some astrologers believe the changes upon Earth are caused and marked by the influences of the given astrological sign, associated with the Age, while other astrologers do not follow the causative model and believe it is a matter of synchronicity.[3] Many astrologers believe that the Age of Aquarius has arrived recently or will arrive in the near future. On the other hand, some believe that the Age of Aquarius arrived up to five centuries ago, or will not start until six centuries from now.[4] Despite all references provided by various sources, astrologers cannot agree upon exact dates for the beginning or ending of the ages. Various ages are described below, such as the Age of Aquarius. Overview[edit] Traditional western Zodiac signs There are three broad perspectives on the astrological ages: Contentious aspects of the astrological ages[edit] Consensus approach to the astrological ages[edit]

Venus Venus is a terrestrial planet and is sometimes called Earth's "sister planet" because of their similar size, gravity, and bulk composition (Venus is both the closest planet to Earth and the planet closest in size to Earth). However, it has also been shown to be very different from Earth in other respects. It has the densest atmosphere of the four terrestrial planets, consisting of more than 96% carbon dioxide. The atmospheric pressure at the planet's surface is 92 times that of Earth's. With a mean surface temperature of 735 K (462 °C; 863 °F), Venus is by far the hottest planet in the Solar System. Physical characteristics Venus is one of the four terrestrial planets in the Solar System, meaning that, like Earth, it is a rocky body. Geography The Venusian surface was a subject of speculation until some of its secrets were revealed by planetary science in the 20th century. The longitudes of physical features on Venus are expressed relative to its prime meridian. Surface geology

An Introduction to the Layers of the Earth by Jason Westley Jason Westley's image for: "An Introduction to the Layers of the Earth" Caption: Location: Image by: Our planet is a complex object. At the simplest level, the earth can be divided into three separate layers: the crust on which we live, the viscous mantle beneath, and the core at the very centre. ~ The Inner Core ~ At the very centre of the planet is a hot ball of solid iron and nickel, a little over 2,400 kilometres in diameter. ~ The Outer Core ~ Beyond the inner core sits a layer of liquid iron and nickel. Before 1936, scientists were only aware that the earth had a core. ~ The D" Layer ~ The core is separated from the mantle by a thin, and little understood layer labelled the D’’ (D prime prime) layer. ~ The Lower Mantle ~ The lower mantle is the single heaviest layer of the earth, accounting for about 50 percent of the entire mass of the planet. Temperatures in the lower mantle can still reach 4,000C. ~ The Upper Mantle ~ ~ The Crust ~ Sources:

Neptune Neptune is similar in composition to Uranus, and both have compositions which differ from those of the larger gas giants, Jupiter, and Saturn. Neptune's atmosphere, while similar to Jupiter's and Saturn's in that it is composed primarily of hydrogen and helium, along with traces of hydrocarbons and possibly nitrogen, contains a higher proportion of "ices" such as water, ammonia, and methane. Astronomers sometimes categorise Uranus and Neptune as "ice giants" in order to emphasise these distinctions.[10] The interior of Neptune, like that of Uranus, is primarily composed of ices and rock.[11] It is possible that the core has a solid surface, but the temperature would be thousands of degrees and the atmospheric pressure crushing.[12] Traces of methane in the outermost regions in part account for the planet's blue appearance.[13] In contrast to the hazy, relatively featureless atmosphere of Uranus, Neptune's atmosphere is notable for its active and visible weather patterns. History Naming

GCSE Bitesize: Causes The Most Distant, Dark Galaxy Ever Found! : Starts With A Bang “One mustn’t look at the abyss, because there is at the bottom an inexpressible charm which attracts us.” -Gustave Flaubert The deepest depths of space, out beyond our atmosphere, our Solar System, and even our galaxy, hold the richness of the great Universe beyond. Stretching for billions of light years in every direction, there are structures large and small, dense and sparse, everywhere we’ve ever dared to look. Image credit: R. In addition to the visible, luminous matter we see in the image above, there’s both non-luminous normal matter and dark matter. One of the easiest ways to figure this out and measure it is by looking at some chance locations in the Universe where there are two massive structures directly lined up, one-behind-the-other, relative to our line-of-sight. Image credit: ESA, NASA, K. Above is what happens when you have a galaxy cluster with both a quasar and a background galaxy directly behind it. It works the other way, too. But I digress. Image credit: S.

Uranus Uranus is the seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. Uranus is similar in composition to Neptune, and both are of different chemical composition than the larger gas giants Jupiter and Saturn. For this reason, astronomers sometimes place them in a separate category called "ice giants". Uranus's atmosphere, although similar to Jupiter's and Saturn's in its primary composition of hydrogen and helium, contains more "ices" such as water, ammonia, and methane, along with traces of hydrocarbons.[12] It is the coldest planetary atmosphere in the Solar System, with a minimum temperature of 49 K (−224.2 °C), and has a complex, layered cloud structure, with water thought to make up the lowest clouds, and methane the uppermost layer of clouds.[12] In contrast, the interior of Uranus is mainly composed of ices and rock.[11] History Discovery The power I had on when I first saw the comet was 227. Naming Name Axial tilt

core Earth’s core is the very hot center of our planet. The Earth has three major layers. All known life exists on the solid outer layer, called the crust. Beneath the crust is the mantle, a gooey, hot layer of magma and other semi-solid rocks and minerals. Movement in the mantle leads to tectonic activity, such as volcanic eruptions and earthquakes, on the crust. The core, beneath the mantle, is the deepest and hottest layer of the Earth. Scientists say the outer core is made mostly of iron and nickel. The inner core is made mostly of iron. Because the Earth has a ball of metal in the middle of it, the entire planet is magnetic. The hard, metallic material in the core is balled up in the center of the Earth because it's the heaviest material on the planet. Inside the core, the metals are constantly moving.