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crab nebula

 

An exploding supernova star leaves behind a rapidly expanding cloud of gaseous material called a nebula. The Crab Nebula was produced when a star in the Milky Way galaxy exploded. Light from the supernova reached the earth in 1054. At the center of the Crab Nebula, a spinning pulsar star emits light of varying brightness. This illuminates the gaseous particles of the nebula to give a cloudlike appearance.

 

GalaxyM82 (NGC 3034)Constellation: Ursa Major

 

Supernova 1987 A

 

Mercury

 

deep space nebula

 

 

 

surface of Mars

 

nebula

 

star in a cluster

 

star cluster

 

sun as seen from earth

 

art -a supernova explosion ring

 

art of a black hole surrounded by accretion disk of hot gases and dusts

 

art of a star

 

The ring nebula is a planetary nebula in the constellation Lyra, approximately 4,100 light-years from Earth. Planetary nebulas form around stars that expelled their outer layers during the transition from red giant to white dwarf late in their lifetimes.

 

The Horsehead Nebula, located over 1,000 light-years away in the constellation Orion, is a dark interstallar cloud of gas and dust. This dark nebula is visible from Earth only because it blocks light emanating from a collection of young stars and radiant gas located behind the nebula.

 

Corbis/AFP
The Crab Nebula at X-ray wavelengths
A brilliant ring surrounds a neutron star at the heart of the Crab Nebula, the remnant of a supernova explosion that was seen from Earth in 1054 AD. This image of the Crab Nebula at X-ray wavelengths was taken by the Chandra X-ray Observatory.

REUTERS/HO
Chandra X-Ray Observatory
This artist's impression depicts the Chandra X-Ray Observatory. The orbiting observatory has detected many new astronomical X-ray sources and produced a wealth of high-resolution images of stars, nebulas, and galaxies.

STS-110 Shuttle Crew, NASA
International Space Station
A cooperative effort of 16 nations, the International Space Station (ISS) is the largest space station ever constructed. It serves as an orbiting research platform. This photograph was taken from the space shuttle Atlantis.

 

Material created with support to AURA/ST Sci from NASA contract NAS5-26555 is reproduced here with permission/Courtesy of E. Karkoschka (University of Arizona), and NASA
Saturn’s Atmosphere
This infrared photo of the planet Saturn has been color coded to indicate the cloud level in Saturn’s atmosphere. Violet and blue represent areas in which Saturn’s atmopshere is clear down to the main cloud layer. Green and yellow show layers of haze above the main cloud layer (yellow represents thicker haze). Red and orange indicate the highest level of clouds, thicker than the haze. White areas are areas of the atmosphere with high levels of water vapor. The bright dots at the upper right and lower left of the picture are Saturn’s satellites Tethys and Dione, respectively. The Hubble Space Telescope took this image in 1998.

NASA
Planet and Satellite Sizes
Some of the largest moons in the solar system are as large as or larger than the smallest planets. Depicted here to scale are top row, from left to right, Earth, Mars, Mercury, and Earth's moon; second row, Jupiter’s satellites Io and Europa; third row, Jupiter’s moons Ganymede and Callisto; and bottom row, Venus and Saturn’s moon Titan.

REUTERS/Shamil Zhumatov
Space Tourist Dennis Tito
Dennis Tito, the world’s first paying space tourist, raises his hands after landing in a remote part of Kazakhstan on May 6, 2001. Tito and two Russian cosmonauts returned to Earth in the Soyuz space capsule following a trip to the International Space Station. Tito, a California businessman, hailed his journey in space as a ”trip to paradise.”

Source Microsoft Encarta Reference Library

 

 

galaxy

 

Venus transit:multiple exposure

 

 

 

galaxy

 

Core of galaxy NGC 4261

 

Kathmandu-2004-6-15-17h34mjupiter.jpg

 

Planet Mars:Kathmandu-2004-6-12-12h57m

 

 

Near earth object: art

 

Gullies of Planet Mars

 

Surface of Planet Mars

 

 

Orion Nebula
Located in the constellation Orion, 1,600 light-years away from Earth, the Orion Nebula (M 42) is a bright cloud of gas and dust where stars are in the process of being born. The Orion Nebula looks bright because it reflects light from the multiple star Theta Orionis, located on one side. Radiation from new stars in the Nebula lights up hydrogen in its outer regions, causing the gas to glow with its characteristic red color. M 42 is spread across more than 15 light-years of space.

Orion Nebula in Infrared
This image of the Orion Nebula was taken in infrared radiation—radiation with wavelengths longer than visible light—and given false visible colors. The Orion Nebula is a cloud of gas and dust that surrounds new stars. The young stars light up the nebula and cause it to glow.

 

Photo Researchers, Inc./ESA/ISO, CEA Saclay and ISOCAM Consortium
Stellar Nursery in Infrared
The Infrared Space Observatory (ISO) detected infrared radiation in space. It could see through clouds of interstellar dust because infrared radiation is not blocked by the dust as much as visible light is. The ISO took this picture of new stars forming out of a cloud of dust and gas. The stars are not visible to optical telescopes because the visible light that they emit is blocked by the dust surrounding them.

PICTURE CREDITS

The pictures with captions are taken from Encarta Reference Library

Other sources include:

NASA, JPL

ESO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

kosmandu gallery

 

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