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Space a visual encyclopedia pdf

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Encyclopedia - dokument [*.pdf] featuring the latest imagery from nasa SPACEa visual encyclopedia DK PUBLISHING Space: A Visual Encyclopedia Contents. Space: A Visual Encyclopedia - PDF Free Download. Space: A Visual Encyclopedia builds on the enormous success of DK's best-selling encyclopedias. It. a visual encyclopedia LONDON, NEW YORK, MELBOURNE, MUNICH, AND DELHI Senior editor All the galaxies together take up just two millionths of space.

Actions Shares. It is close to the equator and therefore favorable for placing satellites into the Vandenberg geostationary orbit directly Kennedy above the equator. The most energetic cosmic rays come from the centers of quasars. The most recent to join was Hawaii, on 20 August How Things Work Encyclopedia. X-rays are a very short. Who HQ and Tui Sutherland.

Wherever possible. Start reading the introduction. The nebula lies about 2. Planetary nebulas last a few thousand years. Subentries provide important additional its core shrinks and the star expands once again. Within each section are main will guide you to all the entries on that topic.

In the index. A matchbox of white dwarf material People: This charts TILT. The core mai n se is extremely hot and appears as a bright achievement. Each of the six sections of the low temperatures with liquid in astronomy and space book has a different color helium. This 2. Pages — contain details on entries that tell you more about the death of stars and These revolutionary ideas. ORE 1. The glossary defines White dwarf material is a million gas blown off the star times more dense than water.

This about terms. These boxes give Silicate Venus is a little smaller ments. During this present day. Galileo did much to disprove ancient Greek theories of rings A and B now known physics.

It is a tiny star in orbit around the bright star Sirius. The you can find out more about a particular subject. About 10 percent of all the stars in the galaxy may be compare the features of planets.

This is the burned. If the core of the burned-out star is heavier than Italian mathematician. There is a Find Out More box for each entry.

Giovanni Cassini As professor of mathematics at the Universities of Pisa and discovered the gap between Padua. Its atmosphere helps to make it the hottest planet of all. Carbon dioxide It is kept hot by the white means that the gravitational field number indicates a major entry. This box Jupiter had four satellites. On learning of the invention of the telescope. It a Timeline. It spins slowly. It has technology used for studying and for two moons. A person standing on a white dwarf would weigh about tons.

The biographies tell Church. This page on is exhausted. Most give landmarks of looked at Saturn through Hertzsprung-Russell diagram. Galileo no more nuclear fuel to burn and exploring space. Once restricted to logging the light coming from celestial objects.

Electronics and computers have also revolutionized the collection of data and its analysis. Space probes sent to other worlds have changed this a little.

Solid state while electronic cameras record data recorders exquisite views of the cosmos. In space. Speed Hubble is control in sight. Hubble carries the type of equipment found on many satellites: All signals to and from Hubble pass through Diameter 14 ft this center. The engineers Mass From its high orbit.

Length 43 ft electronic camera. Launched in after decades of planning. Faint Object Camera is very sensitive. Hubble found the atmosphere. Hubble has a clear view of evidence for a massive black everything in the universe.

After the Space Shuttle Columbia was destroyed in an accident in Light is reflected from the main mirror to the secondary. Hubble detected Second high-gain antenna the galaxy containing an energetic gamma-ray burster—the most powerful explosion ever observed. Hubble Solar arrays provide power by converting sunlight into 21 ft 6. Its reflector is the Eagle Nebula. Hubble Space Telescope. NASA will use an observatory in It will operate distant galaxies.

NASA began to build Hubble. There were visits in When crucial parts fail and the keeps bright sunlight from spoiling images. They collect light with a mirror. The lens will around horizontally. The mirror surface on the Gemini Telescope is Mirror is so smooth that if the ft 8-m Lens polished to an accuracy of mirror were the diameter of Earth. Lenses are also heavy: There are two types of telescope. Lens Concave lens c Dorling Kindersley. Reflectors have two key advantages over refractors.

Main mirror is 26 ft 8 m in diameter. Mirror because a mirror can be supported at the cell back. The image is upside down. They must different colors at colors are focused different points. Refractors are robust and useful for Observing platform Whole telescope viewing bright objects. This means the data-recording equipment does not have to be a part of the moving telescope. The twin Gemini telescopes. A telescope captures as segments. It is designed to record the spectra of stars much light as possible—the more light it and galaxies and does not collects.

Museum Open frame display lessens weight. Long exposures produce the 12 moonwidths he was the first to realize best data for analysis.

There are two main types of mounting: Eyepiece Altazimuth mounting allows big telescopes to be mounted horizontally. His reflecting main mirror. North-south position is fixed for viewing a particular star. Light is focused onto a battery of instruments waiting to record the data.

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It has to support the weight of the telescope polar Polar axis aligned and to swing it around as Earth spins on its axis. Though originally invented to secondary take photographs. Mirror Telescope swings around horizontally. They collect Eyepiece light with a concave mirror.

He concluded that Light is reflected from the main lenses would always form mirror towards secondary mirror. They are especially useful for conducting surveys. Main lens Jupiter.

His telescopes mirror were no more powerful than toys. As a result. The other is size: The telescopes themselves weigh collecting area 17 times greater than tons metric tons and stand eight the Hubble Space Telescope. The telescope mirrors measure 33 ft 10 m across—giving them a light- collecting area half the size of a tennis court.

They are mounted on lightweight can see more clearly. Hubble stories tall. Magnum Mirror Telescope 21 ft Arizona Formerly had 6 mirrors Walter Baade and Landon Clay 21 ft each Chile Identical telescopes adjusting each segment twice a second to an Bolshoi Teleskop Azimutalnyi 20 ft Russia First large altazimuth accuracy that is a thousand times finer than a Large Zenith Telescope 20 ft Canada Liquid mercury mirror human hair.

But mirrors more than 26 ft 8 m in diameter have limitations. The latest ground- based telescopes use ingenious solutions to get around these limitations. Each segment weighs lb kg. A computer controls the mirrors. A single mirror this size would bend under its own weight. One is the atmosphere: With the atmosphere constantly moving. In adaptive optics. A computer when it started operation figures out how the light from the artificial in By collecting light for one hour. The four telescopes have been given names in the local Mapuche language: Antu The Sun.

Melipal The Southern Cross. They can be combined in a special mode to resolve fine detail on bright objects. Kueyen The Moon. Located at Las Campanas in Chile. When completed in about It was the first in the ft m class of telescopes. It is a thin silicon chip with picture above. The human eye is simply not a good enough light detector. When light falls on a pixel. CCDs are more sensitive than photographic plates: Charged pixel Signal to computer c Dorling Kindersley.

At the end of the exposure. Every positive charge. CCD from a big telescope. They are taken with electronic cameras built around a light-sensitive computer chip called a charge-coupled device CCD. Spectrographs split up light by its wavelengths to reveal the strength of each.

To obtain enough a pixel ejects information to make an image in natural negatively colors.

Space Visual Encyclopedia | DK US

This creates dark absorption lines on the spectrum. Old absorption photographic surveys remain important archives. The wavelength from to Red spectrum is crossed by bright or dark lines at nanometers nm. Visible light is a etched with thousands of closely spaced lines to mixture of colors ranging in spread out light into a spectrum of colors. They take image through a great variety of filters that pick Sodium — out different wavelengths.

CCDs are sensitive to infrared radiation. The shortest wavelength. Electronic instruments with digital imaging devices Sodium have completely replaced photography.

Computers are also used Light from a hot star travels out to control every aspect of running telescopes. The power of spectroscopy lies in analyzing these lines to reveal the elements Violet nm Hydrogen gas that are present in the object and how hot it is.

In spectroscopy. The Hubble Space Telescope also flies in space for sharper views.

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New technology enabled astronomers to gamma rays tune in to all the radiation coming from objects in space—and not simply light. Sources include black holes. Traveling at It is like hearing a Energetic regions of the universe single note from a melody: Tuning in to invisible waves of energy.

Light Very hot gas in clusters of galaxies emits forms just one part of a whole range of X-rays. Invisible atmosphere has astronomy has only come of age since scientists absorbed all radiation Balloon carrying gamma have been able to intercept radiation in space. Different radiations nanometers billionths of a meter. Stars give out visible light. Radio waves are produced by electrons zooming through the magnetic fields of Lobes of radio galaxy distant radio galaxies.

Radio waves are emitted by many have wavelengths between comes from objects with objects. These are light and shorter radio waves. X-rays and gamma rays penetrate far enough to be recorded by detectors on balloons. They reach temperatures up to around active galaxies to the Big Bang itself.

As its name suggests. We would be able to pick out young from stars at 5. In a normally hidden by tiny grains of dust in space— universe where gas clouds can be as hot as a million degrees.

Satellites Far infrared can only It covers a much wider part of the are best. By using infrared telescopes. Young stars. Some of the shorter and longer wavelengths. An infrared Telescope Facility camera. Cooler objects emit the most radiation. Using infrared. Sea level He called this invisible radiation infrared. It could not observe after the coolant ran out. Electronic detonators Cool dust clouds shine in the far infrared.

These to the sky. Its mirror is 8 ft 2. In IRAS the denser regions. It carried three instruments. Cool glow from the Big Bang emits submillimeter wavelengths. Science area with computer Mirror. To optical telescopes. Sir William Herschel found that high-precision radio a thermometer registered heat when placed telescopes.

In contrast. Spitzer Space including vast clouds of dust and gas stretching hundreds of light- Infrared years across the constellation of Orion. This helped minimize the effects of heat from Earth so it could carry less coolant. Scientists often refer to radio waves by frequency—the number Interstellar clouds of hot gas emit short radio waves. Telescopes perched on mountains seek out millimeter wavelengths.

No one is allowed to broadcast at the wavelengths used to study the universe. Even so. The shorter WMAP the wavelength. These include the remains of supernovas. In most universe. Dish radio telescopes.

Radio telescopes can more detail the radio The antenna produces electrical signals also track down molecules in space. The bigger the dish. The 27 dishes of the Very Large Array can be moved along three railroad tracks to a distance of 22 miles 36 km apart. They produce radio waves of a type called synchrotron radiation. British scientist The two lobes of a distant Stanley Hey — A single line of telescopes—or even the Y-shape found strong radio outbursts radio galaxy are visible only to a radio telescope.

To reveal more detail. As the solar system. Arno Penzias and Robert Wilson discovered Lovell Telescope Arecibo 90 miles Rotating Earth the faint echo of heat from km 6 hours turns the telescopes the Big Bang—the cosmic around. Martin Ryle suggested a solution. In the s. Without moving the telescopes. Australian radio astronomers identified the snapshot view full of holes.

Tony Hewish 12 hours. Wavelengths between 10 and 91 nm are called extreme ultraviolet. Ultraviolet can the extreme ultraviolet wavelengths so strongly that it acts as a fog that hides also reveal what is in the hot. A star that is hotter than In everyday life. Distant galaxies wind. An ultraviolet image. German physicist Johann Ritter — cool to emit extreme ultraviolet.

Encyclopedia of Space.pdf

The hottest areas look almost white. The invisible radiation lying glowing gas reveals the shape of the magnetic field. The bright spots are clusters of massive stars. Atoms in an ultraviolet observatory shine most brilliantly in the upper atmosphere are on the Moon in XMM-Newton carries called grazing incidence three X-ray telescopes.

The atmospheres of the Sun and similar stars shine only Supernova remnant faintly in X-rays. Each one contains 58 mirrors. They can be reflected only if they hit a metal surface at a very shallow angle. X-rays are a very short. Electrons in quasar jet wavelength. The shortest X-rays carry the Even the most km most energy. So X-ray detectors must be carried beyond the 0. Launched in It is able to detect millions of objects— cylinder mirror. X-ray sources. The Exosat 2 x 0.

Name Size in Dates Country between grids. Chandra Puppis A is 6. Chandra X-ray 1. Astronomers use two types and wavelength of X-rays. Brighter areas show light-years across. About Its high. Scorpius X Science of very hot gas. XMM-Newton constellation Vela. Solar array to quasars. Optical successively hotter telescopes can barely detect it.

Space Visual Encyclopedia

Puppis A. At its massive cluster of galaxies brightest. Fermi Flashes where gamma rays are Payload module carries Optical camera absorbed in upper atmosphere Altitude at which gamma rays are the scientific instruments. Each flash lasts only a few billionths of a second and particles colliding at almost the speed of light. Interstellar gas clouds glow at gamma-ray wavelengths. A Cerenkov detector of all. Even the longest gamma rays.

An X-ray monitor and optical camera Observatory. It carries help to identify gamma-ray sources. No star or gas cloud is hot enough to shine collects light like an ordinary telescope. Integral is a survey instrument. There is no lower limit to gamma-ray wavelengths: It carries four main instruments. Such short-wavelength gamma rays are uncommon.

Large Magellanic Cloud contains many pulsars and black holes. Vela 5A. The third strongest gamma-ray source. Unidentified source Among them are bright points. The mask is absorbs gamma rays.

Whole sky map from the Compton Gamma Ray Observatory. Red shows the strongest gamma-ray sources. Geminga was discovered. The position of this shadow can show the Gamma rays trigger sparks. Geminga is the nearest neutron star. Some are Cygnus X We see none of the usual stars and Center of the Milky constellations.

Quasar 3C They include particles of dark matter. Lower-energy particles include electrons and neutrinos. It may be a star dying as a supernova. Such explosions generate all kinds of radiation. Most are nuclei of hydrogen protons. Other messengers are predicted by theory. Otherwise the air raining down over several records the more ground pick up most shower has an oval shape that reveals the square miles.

The most energetic cosmic rays come from the centers of quasars. But more exotic messengers are also crisscrossing the cosmos.

Energy single detector in space would intercept from the collision creates several very few. Astronomers have studied cosmic rays actually high-energy particles for many decades. Underground detector Detectors on shower is circular.

But they also spew into space a range of more exotic particles and waves that carry Incoming cosmic ray unique information about this astrophysical chaos. The ray is heading vertically downward. If the cosmic lower in the atmosphere. Others are sent speeding through space by supernova explosions. With no electric charge and virtually no mass. Neutrino telescopes often use a huge tank of water to trap a tiny fraction of the particles passing through.

Neutrinos Astronomers in rubber are born in the hottest places of all. Austrian physicist Victor Hess deforming a rubber sheet. Detector is sited underground to keep out other types of particle. Gravitational waves gravity—the equivalent of bouncing the ball spreading out from a large explosion and sending ripples out across the sheet.

Cosmic acts of — launched violence. LISA will detect it. On small scales. South Dakota. It has totally changed our lives—in fact. The attendant breakthroughs in miniaturization and computer power can be appreciated by anyone with a personal computer.

Hundreds of people have now flown in space and even walked on the Moon—and with the completion of the International Space Station. Space is also a human frontier. Farther afield. Main engine nozzle of opposite to the force action of combustion booster is at Liftoff chamber the escaping exhaust. If the chamber seconds. Liquid helium both mass and the pull of gravity pressurizes the fuel tanks. After about 2 minutes. The extra tons produced a thrust at liftoff equivalent to metric tons of thrust available allows the 32 Boeing s at takeoff.

Gravity Fuel pipe delivers liquid oxygen to main engine combustion chamber. These engines tons. Because they cannot escape main engine upward. As fuel burns during the ascent. The whole a small engine releases the satellite into orbit. Every second for the first seconds of at liftoff comes from a main engine and two their journey.

Gases are allowed to escape through a Exhaust nozzle of nozzle. The mass of the rocket on the ground is tons metric tons. Mass is the same everywhere. With Thrust increased distance from the Earth. Gravity and weight on the ground and the therefore weight decrease with distance from Earth. Upper payload carry satellites above the atmosphere and release them Liquid with enough horizontal force Liquid hydrogen oxygen tank to remain in orbit.

This speed is called the escape velocity. All the through the atmosphere. The action of Solid fuel boosters take over. But in the giant inside the casing Saturn V launcher. It also Imagine a bullet fired fierce combustion and powerful protects the payload. After two minutes. Gravity forces are harnessed to lift a pulls it vertically toward Earth.

In than others. For a satellite. Some sufficient horizontal force. Ariane 5 has force acting upon it divided a main stage boosted by two solid by its mass.

For a rocket. If it operates correctly. The exhaust expels an produces the maximum acceleration is three times that of almost invisible plume cloud of chemicals gravity 3 g.

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At liftoff. The external tank carries liquid attachments. Each space and returning booster weighs 92 tons 83 metric tons. About 1. Fuel and cannot be stopped. In a spiral, such as Andromeda, the arms wind out from a central bulge, while in a barred spiral, they flow from the ends of a central bar of stars.

Elliptical galaxies are ball-shaped. Irregular galaxies have no clear shape. Each star follows its own orbit around the center of the galaxy. Stars in a spiral galaxy typically take a few hundred million years to make an orbit.

Those farther away take longer than those closest to the core. The arms stand out because they are full of very bright young stars. It is a spiral galaxy 2. Each city was ruled by a king, who governed on behalf of the local god. This scene shows the king of the city of Ur receiving goods from his people. This king wears no crown, but his importance is shown by his kilt and the fact that he is larger than everyone else.

Nobles These men may have been priests, relatives of the king, or wealthy landowners. They are shown sitting on chairs with delicately carved legs, evidence of luxury at the palace. Servants Two men move between the king and his guests, bringing food and drink. Their low status is shown by their smaller size. They would have lived in the palace or in mud-brick homes. Musicians This man is shown playing a lyre, which has a wooden sound box decorated with the head of a bull.

Other instruments from the time included harps, lutes, reed pipes, and drums. Music and dancing played a key role in religious rituals, such as giving thanks for a good harvest. Fishermen Rivers offered a plentiful supply of fish for all early civilizations. Workers This man carries a bundle on his back, the heavy load strapped to his head. It was thanks to the toil of workers like this that massive temples for the gods could be built.

Farmers Although the area was hot and dry, silt from the rivers kept the soil fertile. Farmers also dug canals to divert water to their crops, which included barley, turnips, onions, and dates. Animals Sheep, goats, cattle, and pigs were vital to the first civilizations.

They provided meat, milk, leather, and wool. Oxen were used to pull plows and donkeys for transportation. Clothing Made from either wool or flax, both men and women wore tufted kilts, designed to resemble sheepskins.

Wealthy men and women also owned elaborate gold jewelry. It decorates one side of a small wooden box found in a royal grave. The purpose of the box is not known.

This side shows a peaceful banquet, while the other side depicts scenes of war. The nt of carbon dio ased whether th or rots. Its leaves g that a child c cross them an get wet. Eels lay their eggs in the oceans. The baby elvers then make their way to freshwater rivers. A female eel can lay up to mill e o de mer ar weigh up to can breathe air using lun al, the bumb g —lighter t rabbit babies the only bir nd backward ts n t can grow up to ft 50 m tall. Some lichens 3f A A mal be hea Croco They d their b Shar of sm detec Prairie towns 40 in A woodpecker can peck up to 20 times per second.

The food pass throug ue to e about econds. There a in the US mes a minut of gas per da ery, the in 3. It is seen one, a because of ernet name ss. T rom er r 1, times less space. It star eds dB, is lost in ricity. David A.

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Brenda Woods. The Dark Stairs. Dead Letter. The Gathering. Michael Carroll. Gods of Manhattan. Mouse Noses on Toast. Who Was Norman Rockwell? Sarah Fabiny and Who HQ. Who Was H. Who HQ and Michael Burgan.

The Children of Noisy Village. Astrid Lindgren. The Miscalculations of Lightning Girl. Stacy McAnulty. Rumple Buttercup: Matthew Gray Gubler.

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My Little Pony: Friendship is Magic Volume Ted Anderson and Jeremy Whitley. Megabat and Fancy Cat. Anna Humphrey. Jake the Fake Goes for Laughs. Craig Robinson and Adam Mansbach.

Who Was Amelia Earhart? Who Was Wolfgang Amadeus Mozart? Who Was Thomas Jefferson? The Red Rose Box.