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*Description*: Screen capture of the Orion constellation border and numerous astronomical objects located in the direction of that constellation. Technical facts about this news release: Back to entire collection [ http://hubblesite.org/newscenter/archive/releases/index/23/ ] Next release [ http://hubblesite.org/newscenter/archive/releases/2007/30/ ] Previous release [ http://hubblesite.org/newscenter/archive/releases/2007/32/ ] *News Release Number:*: STScI-2007-22c

Astronomers make the music of the cosmos, by turning data into sound; Evidence suggests that humans omletted Australian Thunderbirds to extinction; New Hubble image proves there's life in the old space telescope; Why removing invasive species can help ecosystems battle climate change; A paleontologist reconstructs what Earth sounded like through its long history.

Technical facts about this news release: Back to entire collection [ http://hubblesite.org/newscenter/archive/releases/index/492/ ] Next release [ http://hubblesite.org/newscenter/archive/releases/1995/36/ ] Previous release [ http://hubblesite.org/newscenter/archive/releases/1995/44/ ] *News Release Number:*: STScI-1995-43b

*Description*: Tour the Cosmos logo. Technical facts about this news release: Back to entire collection [ http://hubblesite.org/newscenter/archive/releases/index/382/ ] Next release [ http://hubblesite.org/newscenter/archive/releases/1998/32/ ] Previous release [ http://hubblesite.org/newscenter/archive/releases/1998/35/ ] *News Release Number:*: STScI-1998-33a

*Description*: Screen capture from the Sky in Google Earth depicting boundaries around major constellations. Technical facts about this news release: Back to entire collection [ http://hubblesite.org/newscenter/archive/releases/index/23/ ] Next release [ http://hubblesite.org/newscenter/archive/releases/2007/30/ ] Previous release [ http://hubblesite.org/newscenter/archive/releases/2007/32/ ] *News Release Number:*: STScI-2007-22b

*Description*: Looking like a colorful holiday card, this image from NASA's Hubble Space Telescope reveals a vibrant green and red nebula far from Earth, where nature seems to have put on the traditional colors of the season. These colors, produced by the light emitted by oxygen and hydrogen, help astronomers investigate the star-forming processes in nebulas such as NGC 2080. NGC 2080, nicknamed "The Ghost Head Nebula," is one of a chain of star-forming regions lying south of the 30 Doradus nebula in the Large Magellanic Cloud that have attracted special attention. These regions have been studied in detail with Hubble and have long been identified as unique star-forming sites. 30 Doradus is the largest star-forming complex in the whole local group of galaxies. The light from the nebula captured in this image is emitted by two elements, hydrogen and oxygen. The red and the blue light are from regions of hydrogen gas heated by nearby stars. The green light on the left comes from glowing oxygen. The energy to illuminate the green light is supplied by a powerful stellar wind (a stream of high-speed particles) coming from a massive star just outside the image. The white region in the center is a combination of all three emissions and indicates a core of hot, massive stars in this star-formation region. The intense emission from these stars has carved a bowl-shaped cavity in the surrounding gas. In the white region, the two bright areas (the "eyes of the ghost") - named A1 (left) and A2 (right) - are very hot, glowing "blobs" of hydrogen and oxygen. The bubble in A1 is produced by the hot, intense radiation and powerful stellar wind from a single massive star. A2 has a more complex appearance due to the presence of more dust, and it contains several hidden, massive stars. The massive stars in A1 and A2 must have formed within the last 10,000 years, since their natal gas shrouds are not yet disrupted by the powerful radiation of the newly born stars. The research team noted that Hubble's superb resolution is essential to see the various features in the nebula and to better understand the formation of massive stars in this interesting region. This "enhanced color" picture is composed of three narrow-band-filter images obtained March 28, 2000, with Hubble's Wide Field Planetary Camera 2. The colors are red (ionized hydrogen, H-alpha, 1040 seconds), green (ionized oxygen, 1200 seconds) and blue (ionized hydrogen, H-beta, 1040 seconds). The image spans 67 x 67 arc-seconds, corresponding to 55 x 55 light-years at the distance of the Large Magellanic Cloud (168,000 light-years). Technical facts about this news release: About this Object Object Name: NGC 2080 Object Description: Star-forming Region in the Large Magellanic Cloud (LMC) Position (J2000): R.A. 05h 39m 45.08s Dec. -69° 37' 49.68" Constellation: Doradus Distance: About 54.7 kpc (168,000 light-years) Dimensions: The image is 67 arcseconds square. At the distance of the LMC, this corresponds to a physical scale of roughly 55 light-years square. About the Data Instrument: WFPC2 Exposure Date: March 28, 2000 Exposure Time: 0.9 hours Filters: F487W (H-beta), F502W ([O III]), F656N (H-alpha) Principal Astronomers: M. Heydari-Malayeri (Observatoire de Paris, France), V. Charmandaris (Cornell University), L. Deharveng (Observatoire de Marseille, France), F. Maynadier (Observatoire de Paris, France), M.R. Rosa (ST-ECF, Germany), D. Schaerer (Observatoire Midi-Pyrenees, France) and H. Zinnecker (Astrophysikalisches Institut Potsdam, Germany). About this Image Image Credit: NASA, ESA and Mohammad Heydari-Malayeri (Observatoire de Paris, France) Release Date: December 19, 2001 Orientation: The Ghost Head Nebula (NGC 2080) [ http://imgsrc.hubblesite.org/hu/db/2001/34/images/a/formats/compass_large_web.jpg ] *News Release Number:*: STScI-2001-34a

*Description*:> A total of 129 of Hubble Space Telescope's best images have been incorporated into Sky in Google Earth. This easy-to-use Internet tool enables users to view and navigate through 100 million individual stars and 200 million galaxies. High-resolution imagery and informative overlays about the Hubble images create a unique educational environment for visualizing and learning about space. Astronomers at the Space Telescope Science Institute in Baltimore worked with Google programmers to assemble a tapestry of Hubble images to embed in the desktop planetarium program. Technical facts about this news release: Back to entire collection [ http://hubblesite.org/newscenter/archive/releases/index/23/ ] Next release [ http://hubblesite.org/newscenter/archive/releases/2007/30/ ] Previous release [ http://hubblesite.org/newscenter/archive/releases/2007/32/ ]

*Description*: These two objects represent a new distant class of quadruple, or cross-shaped, gravitational lenses which might eventually provide astronomers with a powerful new "magnifying glass" for probing a variety of characteristics of the universe. The two gravitational lenses were discovered in about 100 fields of sky imaged by Hubble Space Telescope's Wide Field Planetary Camera 2. The first cross-shaped lens was discovered serendipitously by Eric Ostrander while processing HST images for the Medium Deep Survey, a Hubble key project led by Richard Griffiths. A second fainter and smaller lens was identified a few weeks later by Myungshin Im. Each configuration is in the form of four faint blue images situated symmetrically around a much brighter red elliptical galaxy. The distinctive cross-like pattern around an elliptical galaxy makes them unambiguous quadruple lens candidates, even before spectroscopic observations, which are typically used to confirm lenses. Hubble's high resolution allows astronomers to extend the search to much fainter, and hence much farther lenses, than those few examples ground-based telescopes have uncovered relatively nearby. Hubble can explore a larger volume of space which could provide enough examples of this rare cross type of lensing to allow astronomers to address a variety of fundamental cosmological questions. A gravitational lens is produced by the enormous gravitational field of a massive object which bends light to magnify, brighten and distort the image of a more distant object. Depending on the alignment between the objects and the mass distribution of the foreground lens, the more distant object can be smeared into arcs or split into pairs, triples, or even quadruple images. Technical facts about this news release: Back to entire collection [ http://hubblesite.org/newscenter/archive/releases/index/492/ ] Next release [ http://hubblesite.org/newscenter/archive/releases/1995/36/ ] Previous release [ http://hubblesite.org/newscenter/archive/releases/1995/44/ ] *News Release Number:*: STScI-1995-43a

Technical facts about this news release: Back to entire collection [ http://hubblesite.org/newscenter/archive/releases/index/492/ ] Next release [ http://hubblesite.org/newscenter/archive/releases/1995/36/ ] Previous release [ http://hubblesite.org/newscenter/archive/releases/1995/44/ ] *News Release Number:*: STScI-1995-43c

*Description*: The NASA Hubble Space Telescope photograph (left) shows a pair of L-shaped images with striking mirror- symmetry. These are thought to arise from a very distant galaxy seen through a cluster of foreground galaxies (right). The gravity of the galaxy cluster acts as a natural magnifying glass, bending and focusing the light of the more distant Source into several images, each of which is apparently larger and brighter than would otherwise be the case. This rare combination of Hubble's powerful telescope mirrors and the natural telephoto lens gives astronomers unprecedented information on the nature of very distant galaxies, and on the distribution and nature of matter in the foreground cluster. The two compact objects in the center of the HST image are thought to be unrelated galaxies in the foreground cluster. The observations were made with Hubble's Wide Field Camera in one of the first long exposures (six hours) with the orbiting observatory. Technical facts about this news release: Back to entire collection [ http://hubblesite.org/newscenter/archive/releases/index/613/ ] Next release [ http://hubblesite.org/newscenter/archive/releases/1992/24/ ] Previous release [ http://hubblesite.org/newscenter/archive/releases/1992/26/ ] *News Release Number:*: STScI-1992-25a

*Description*: The NASA Hubble Space Telescope photograph (left) shows a pair of L-shaped images with striking mirror- symmetry. These are thought to arise from a very distant galaxy seen through a cluster of foreground galaxies (right). The gravity of the galaxy cluster acts as a natural magnifying glass, bending and focusing the light of the more distant Source into several images, each of which is apparently larger and brighter than would otherwise be the case. This rare combination of Hubble's powerful telescope mirrors and the natural telephoto lens gives astronomers unprecedented information on the nature of very distant galaxies, and on the distribution and nature of matter in the foreground cluster. The two compact objects in the center of the HST image are thought to be unrelated galaxies in the foreground cluster. The observations were made with Hubble's Wide Field Camera in one of the first long exposures (six hours) with the orbiting observatory. Technical facts about this news release: Back to entire collection [ http://hubblesite.org/newscenter/archive/releases/index/613/ ] Next release [ http://hubblesite.org/newscenter/archive/releases/1992/24/ ] Previous release [ http://hubblesite.org/newscenter/archive/releases/1992/26/ ] *News Release Number:*: STScI-1992-25a

We have analyzed the redshift-dependent fraction of galactic bars over 0.2

*Description*: A close-up view of the DSS image of the Orion Nebula, with the Hubble image of the nebula overlaid. Technical facts about this news release: Back to entire collection [ http://hubblesite.org/newscenter/archive/releases/index/23/ ] Next release [ http://hubblesite.org/newscenter/archive/releases/2007/30/ ] Previous release [ http://hubblesite.org/newscenter/archive/releases/2007/32/ ] *News Release Number:*: STScI-2007-22d

We describe the details of the Hubble Space Telescope (HST) Advanced Camera for Surveys / Wide Field Channel (ACS/WFC) observations of the COSMOS field, including the data calibration and processing procedures. We obtained a total of 583 orbits of HST ACS/WFC imaging in the F814W filter, covering a field that is 1.64 square degrees in area, the largest contiguous field ever imaged with HST. The median exposure depth across the field is 2028 seconds (one HST orbit), achieving a limiting point-source depth AB(F814W) = 27.2 (5 sigma). We also present details about the astrometric image registration, distortion removal and image combination using MultiDrizzle, as well as motivating the choice of our final pixel scale (30 milliarcseconds per pixel), based on the requirements for weak lensing science. The final set of images are publicly available through the archive sites at IPAC and STScI, along with further documentation on how they were produced.

We describe the details of the Hubble Space Telescope (HST) Advanced Camera for Surveys / Wide Field Channel (ACS/WFC) observations of the COSMOS field, including the data calibration and processing procedures. We obtained a total of 583 orbits of HST ACS/WFC imaging in the F814W filter, covering a field that is 1.64 square degrees in area, the largest contiguous field ever imaged with HST. The median exposure depth across the field is 2028 seconds (one HST orbit), achieving a limiting point-source depth AB(F814W) = 27.2 (5 sigma). We also present details about the astrometric image registration, distortion removal and image combination using MultiDrizzle, as well as motivating the choice of our final pixel scale (30 milliarcseconds per pixel), based on the requirements for weak lensing science. The final set of images are publicly available through the archive sites at IPAC and STScI, along with further documentation on how they were produced.