1997年06月21日:The Pipe Dark Nebula-（The Pipe Dark Nebula） 1997年06月21日:The Pipe Dark Nebula-（The Pipe Dark Nebula）--原图下载{mtitle title="The Pipe Dark Nebula"/}Credit and Copyright: Jerry LodrigussExplanation: The dark nebula predominant at the lower left of the above photographis known as the Pipe Nebula. The dark clouds, suggestively shaped like smoke rising from a pipe,are caused by absorption of background starlight by dust. These dust clouds can be traced all the way to the Rho Ophiuchi nebular clouds on the right. The brightest star in the field isAntares.Many types of nebula are highlighted here: the red are emission nebula, the blue are reflection nebula, and the dark are absorption nebula.This picture has been digitally enhanced.{lamp/}原文：{mtitle title="The Pipe Dark Nebula"/}Credit and Copyright: Jerry LodrigussExplanation: The dark nebula predominant at the lower left of the above photographis known as the Pipe Nebula. The dark clouds, suggestively shaped like smoke rising from a pipe,are caused by absorption of background starlight by dust. These dust clouds can be traced all the way to the Rho Ophiuchi nebular clouds on the right. The brightest star in the field isAntares.Many types of nebula are highlighted here: the red are emission nebula, the blue are reflection nebula, and the dark are absorption nebula.This picture has been digitally enhanced.

1997年05月20日:Shells in the Egg Nebula-（Shells in the Egg Nebula） 1997年05月20日:Shells in the Egg Nebula-（Shells in the Egg Nebula）--原图下载{mtitle title="Shells in the Egg Nebula"/}Credit: R. Thompson (U. Arizona) et al., NICMOS, HST, NASAExplanation: The Egg Nebula is taking a beating. Like a baby chick pecking its way out of an egg, the star in the center of theEgg Nebula is casting away shells of gas and dust as it slowly transforms itself into a white dwarf star. The above picture was taken by the newly installed Near Infrared Camera and Multi-Object Spectrometer (NICMOS) now on board the Hubble Space Telescope. A thick torus of dust now surrounds the star through which the shell gas is escaping. Newly expelled gas shells escape in beams as can be seen in the original HST image and in the recently released image shown above. This infrared image is coded in false color to highlight two different types of emission. The red light represents hot hydrogen gas heated by the collisions of expanding shells. The blue light represents light from the central star scattered by the dust in the nebula. It takes light about 3000 years to reach us from the Egg Nebula, which is hundreds of times the size of our Solar System.{lamp/}原文：{mtitle title="Shells in the Egg Nebula"/}Credit: R. Thompson (U. Arizona) et al., NICMOS, HST, NASAExplanation: The Egg Nebula is taking a beating. Like a baby chick pecking its way out of an egg, the star in the center of theEgg Nebula is casting away shells of gas and dust as it slowly transforms itself into a white dwarf star. The above picture was taken by the newly installed Near Infrared Camera and Multi-Object Spectrometer (NICMOS) now on board the Hubble Space Telescope. A thick torus of dust now surrounds the star through which the shell gas is escaping. Newly expelled gas shells escape in beams as can be seen in the original HST image and in the recently released image shown above. This infrared image is coded in false color to highlight two different types of emission. The red light represents hot hydrogen gas heated by the collisions of expanding shells. The blue light represents light from the central star scattered by the dust in the nebula. It takes light about 3000 years to reach us from the Egg Nebula, which is hundreds of times the size of our Solar System.

1997年05月06日:Copyright:-（Copyright:） 1997年05月06日:Copyright:-（Copyright:）--原图下载{mtitle title="Copyright:"/}Credit: B. C. Whitmore (STScI) & F. Schweizer (DTM, CIW), HST, NASACopyright: AURAExplanation: Do star clusters form when galaxies collide? Quite possibly, according to Hubble Space Telescope observations of the "Antennae", two galaxies thought to be in the early stages of a collision. As NGC 4038 and NGC 4039 slowly merge, the combined gravity of each pulls the other apart, huge gas clouds collide, and new bright stars and dark dust are dispersed. Many blue knots of stars appear to be newly formed globular clusters. Red star knots are particularly interesting, as they might be globular clusters that have not yet expelled early dust from their system. The above picture is centered around the smaller of the two interacting galaxies: NGC 4039. The color contrast in the above three-color mosaic was chosen to highlight extended features.{lamp/}原文：{mtitle title="Copyright:"/}Credit: B. C. Whitmore (STScI) & F. Schweizer (DTM, CIW), HST, NASACopyright: AURAExplanation: Do star clusters form when galaxies collide? Quite possibly, according to Hubble Space Telescope observations of the "Antennae", two galaxies thought to be in the early stages of a collision. As NGC 4038 and NGC 4039 slowly merge, the combined gravity of each pulls the other apart, huge gas clouds collide, and new bright stars and dark dust are dispersed. Many blue knots of stars appear to be newly formed globular clusters. Red star knots are particularly interesting, as they might be globular clusters that have not yet expelled early dust from their system. The above picture is centered around the smaller of the two interacting galaxies: NGC 4039. The color contrast in the above three-color mosaic was chosen to highlight extended features.

1997年01月19日:-（） 1997年01月19日:-（）--原图下载{mtitle title=""/}NASA Technical Rep.: Jay Norris.Specific rights apply.A service of:LHEAatNASA/GSFC &:Michigan Tech. U.Explanation:Perhaps the most famous astronomical image in recent years revealsnewborn stars upon pillars of gas and dust - uncovered as researchers usedthe Hubble Space Telescope to explorethe Eagle Nebula in 1995.This stunning picture provides a first handglimpse of star birth asevaporating gaseous globules (EGGs) are captured emergingfrom pillars of molecular hydrogen gas and dust.These pillars, dubbed "elephant trunks," are light years in length and areso dense that interior gas gravitationally contracts to form stars. At each pillars' end, the intense radiation of bright young starscauses low density gas to boil away, leaving stellar nurseries of denseEGGs exposed.{lamp/}原文：{mtitle title=""/}NASA Technical Rep.: Jay Norris.Specific rights apply.A service of:LHEAatNASA/GSFC &:Michigan Tech. U.Explanation:Perhaps the most famous astronomical image in recent years revealsnewborn stars upon pillars of gas and dust - uncovered as researchers usedthe Hubble Space Telescope to explorethe Eagle Nebula in 1995.This stunning picture provides a first handglimpse of star birth asevaporating gaseous globules (EGGs) are captured emergingfrom pillars of molecular hydrogen gas and dust.These pillars, dubbed "elephant trunks," are light years in length and areso dense that interior gas gravitationally contracts to form stars. At each pillars' end, the intense radiation of bright young starscauses low density gas to boil away, leaving stellar nurseries of denseEGGs exposed.