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Hubble Discovers Powerful La
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| Title |
Hubble Discovers Powerful Laser Beamed from Chaotic Star |
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Hubble Observes the Fire and
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| Title |
Hubble Observes the Fire and Fury of a Stellar Birth |
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Hubble Finds an Hourglass Ne
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| Title |
Hubble Finds an Hourglass Nebula around a Dying Star |
| General Information |
What is an American Astronomical Society Meeting release? A major news announcement issued at an American Astronomical Society meeting, the premier astronomy conference. This Hubble telescope snapshot of MyCn18, a young planetary nebula, reveals that the object has an hourglass shape with an intricate pattern of "etchings" in its walls. A planetary nebula is the glowing relic of a dying, Sun-like star. The results are of great interest because they shed new light on the poorly understood ejection of stellar matter that accompanies the slow death of Sun-like stars. According to one theory on the formation of planetary nebulae, the hourglass shape is produced by the expansion of a fast stellar wind within a slowly expanding cloud, which is denser near its equator than near its poles. |
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Hubble Finds Searchlight Bea
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| Title |
Hubble Finds Searchlight Beams and Multiple Arcs around a Dying Star |
| General Information |
What is an American Astronomical Society Meeting release? A major news announcement issued at an American Astronomical Society meeting, the premier astronomy conference. This Hubble telescope picture of the Egg Nebula, also known as CRL2688, shows a pair of mysterious "searchlight" beams emerging from a hidden star and criss-crossed by numerous bright arcs. This image sheds new light on the poorly understood ejection of stellar matter that accompanies the slow death of Sun-like stars. The nebula is really a large cloud of dust and gas ejected by the star, expanding at a speed of 115,000 mph (20 km/s). A dense cocoon of dust [the dark band in the center] enshrouds the star and hides it from our view. Starlight escapes more easily in directions where the cocoon is thinner and is reflected towards us by dust particles in the cloud, giving it its overall appearance. Objects like CRL2688 are rare because they are in a very short evolutionary phase. However, they may hold the key to our understanding of how red giant stars transform themselves into planetary nebulae, the glowing remnants of dying stars. |
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Hubble Goes to the Limit In
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| Title |
Hubble Goes to the Limit In Search Of Farthest Galaxies |
| General Information |
What is a Space Science Update? Major Hubble discoveries on NASA television ... Astronomers explain their Hubble discoveries at a press conference, called a Space Science Update (SSU), broadcast on NASA television. The SSU includes a question and answer session with members of the media. Stretching the Hubble telescope's vision farther across space and further back into time than ever before, astronomers have peered into a previously unseen realm of the universe. A "long-exposure" infrared image has uncovered the faintest galaxies ever seen. Astronomers believe some of these galaxies could be the farthest objects ever seen. A powerful new generation of telescopes will be needed to confirm the suspected distances. The picture on the left contains over 300 galaxies, which have spiral, elliptical, and irregular shapes. The two images on the right represent close-up views of objects that may be over 12 billion light-years away, the farthest galaxies ever seen. Each faraway galaxy is centered in the frame. Read more: * Release Text [ http://hubblesite.org/newscenter/archive/releases/1998/32/text/ ] |
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Very Long Baseline Array Rev
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| Title |
Very Long Baseline Array Reveals Formation Region of Giant Cosmic Jet Near a Black Hole |
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Lost and Found: Hubble Finds
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| Title |
Lost and Found: Hubble Finds Much of the Universe's Missing Hydrogen |
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Lost and Found: Hubble Finds
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| Title |
Lost and Found: Hubble Finds Much of the Universe's Missing Hydrogen |
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Hubble Probes the Heart of a
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| Title |
Hubble Probes the Heart of a Nearby Quasar |
| General Information |
What is an American Astronomical Society Meeting release? A major news announcement issued at an American Astronomical Society meeting, the premier astronomy conference. Back to top [ #top ] |
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First ESA Faint Object Camer
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| Title |
First ESA Faint Object Camera Science Images The Radio Galaxy PKS 0521-36 |
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NASA's Hubble Space Telescop
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| Title |
NASA's Hubble Space Telescope Discovers Protoplanetary Disks Around Newly Formed Stars |
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NASA's Hubble Space Telescop
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| Title |
NASA's Hubble Space Telescope Resolves a Dark "x" Across the Nucleus of M51 |
| General Information |
What is an American Astronomical Society Meeting release? A major news announcement issued at an American Astronomical Society meeting, the premier astronomy conference. NASA's Hubble Space Telescope has provided astronomers with what may be their first direct view of an immense ring of dust which fuels a massive black hole at the heart of the spiral galaxy M51, located 20 million light-years away. Surprisingly, they found that the ring is standing almost perpendicularly to the relatively flat spiral galaxy, like a top spinning on its side with respect to the floor. Even more surprising is the discovery of a secondary ring or dust lane which is contrary to all expectations. Read more: * Release Text [ http://hubblesite.org/newscenter/archive/releases/1992/17/text/ ] |
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Hubble Sees Gas Shell Around
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| Title |
Hubble Sees Gas Shell Around Nova Cygni 1992 |
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HST Reveals the Central Regi
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| Title |
HST Reveals the Central Region of an Active Galaxy |
| General Information |
What is an Early Release Observation? A photograph of a celestial object that demonstrates the performance of a new Hubble camera. What is an American Astronomical Society Meeting release? A major news announcement issued at an American Astronomical Society meeting, the premier astronomy conference. The refurbished HST has provided this outstanding image of the nuclear region of the galaxy NGC 1068. NGC 1068 is located at a distance of approximately 60 Million Light Years and is the prototype of a class of galaxies, known as Seyfert Type 2. |
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Hubble Finds Mysterious Ring
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| Title |
Hubble Finds Mysterious Ring Structure around Supernova 1987a |
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Hubble Finds an Hourglass Ne
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| Name of Image |
Hubble Finds an Hourglass Nebula Around a Dying Star |
| Date of Image |
1996-01-16 |
| Full Description |
Taken by the Wide Field Planetary Camera 2 (WFPC2) of the Hubble Space Telescope (HST), this image of MyCn18, a young planetary nebula located about 8,000 light-years away, reveals its true shape to be an hourglass with an intricate pattern of "etchings" in its walls. The arc-like etchings could be the remnants of discrete shells ejected from the star when it was younger, flow instabilities, or could result from the action of a narrow beam of matter impinging on the hourglass walls. According to one theory on the formation of planetary nebulae, the hourglass shape is produced by the expansion of a fast stellar wind within a slowly expanding cloud, which is denser near its equator than near its poles. Hubble has also revealed other features in MyCn18 which are completely new and unexpected. For example, there is a pair of intersecting elliptical rings in the central region which appear to be the rims of a smaller hourglass. This picture has been composed from three separate images taken in the light of ionized nitrogen (represented by red), hydrogen (green) and doubly-ionized oxygen (blue). The results are of great interest because they shed new light on the poorly understood ejection of stellar matter which accompanies the slow death of sun-like stars. An unseen companion star and accompanying gravitational effects may well be necessary in order to explain the structure of MyCn18. The Marshall Space Flight Center (MSFC) had responsibility for design, development, and construction of the HST. |
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Dust Pillar of the Carina Ne
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| Title |
Dust Pillar of the Carina Nebula |
| Explanation |
Inside the head of this interstellar monster is a star that is slowly destroying it. The monster, actually an inanimate pillar of gas [ http://periodic.lanl.gov/elements/1.html ] and dust [ http://antwrp.gsfc.nasa.gov/apod/ap030706.html ], measures over a light year [ http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html ] in length. The star, not itself visible through the opaque dust, is bursting out partly by ejecting energetic beams of particles [ http://en.wikipedia.org/wiki/Particle_beam_weapon ]. Similar epic battles are being waged all over the star-forming Carina Nebula [ http://antwrp.gsfc.nasa.gov/apod/ap070425.html ]. The stars will win in the end, destroying their pillars of creation [ http://antwrp.gsfc.nasa.gov/apod/ap070218.html ] over the next 100,000 years, and resulting in a new open cluster [ http://antwrp.gsfc.nasa.gov/apod/open_clusters.html ] of stars. The pink dots are newly formed stars that have already been freed from their birth monster. The above image [ http://hubblesite.org/newscenter/archive/releases/2007/16/image/i/ ] is only a small part of a highly detailed panoramic mosaic [ http://hubblesite.org/newscenter/archive/releases/2007/16/image/a/format/zoom/ ] of the Carina Nebula [ http://heritage.stsci.edu/2007/16/supplemental.html ] taken by the Hubble Space Telescope [ http://antwrp.gsfc.nasa.gov/apod/ap010806.html ] and released last week. The technical name for the stellar jets are Herbig-Haro objects [ http://en.wikipedia.org/wiki/Herbig-Haro_objects ]. How a star creates Herbig-Haro jet [ http://antwrp.gsfc.nasa.gov/apod/ap060203.html ]s is an ongoing topic of research [ http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2006MNRAS.369.1167L ], but it likely involves an accretion disk [ http://antwrp.gsfc.nasa.gov/apod/ap991219.html ] swirling around a central star. A second impressive Herbig-Haro jet [ http://antwrp.gsfc.nasa.gov/apod/ap991129.html ] is visible across the bottom of a larger image. |
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HH-47 Star Jet
| Title |
HH-47 Star Jet |
| Explanation |
The star masked by a dust [ http://antwrp.gsfc.nasa.gov/apod/lib/glossary.html#dust ] cloud at the left of the above photo is expelling an energetic beam of charged particles into interstellar space. This jet [ http://www.stsci.edu/pubinfo/gif/JetDisk3.txt ], moving from left to right, has burrowed through much interstellar material, and now expands out into the interstellar space. Although jet particles move at nearly three hundred kilometers per " second ", we still do not see any daily movement because of the enormous distances involved. In fact, the jet is trillions of kilometers long. This stellar jet occurs in a system called HH-47 which is located near the edge of the Gum Nebula. |
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11-Inch High Speed Tunnel
| Title |
11-Inch High Speed Tunnel |
| Description |
Drawing of balance for 11-Inch High Speed Tunnel. The 11-Inch HST used compressed air from the Variable-Density Tunnel (when it was being depressurized). It was similar to a venturi-type wind tunnel. Without a model, air flow speeds approached Mach 1. One of the unique features of this tunnel was its automatic-recording balance used to measure the forces. John Stack supplied a general description of the balance in NACA TR No. 463 (pp. 401-403). "The balance must measure the large range of forces resulting from the wide speed range over which tests are made, and it must be automatic recording because the allowable time for observations is short. The balance measures the lift, drag, and pitching moment by multiplying and recording the deflection of steel springs (cantilever beam type) to which the forces are transmitted. The essential parts consist of a cast-iron cradle in which is mounted a yoke to which the model is attached, the linkages necessary to transmit the forces to the steel springs, and a camera for multiplying and recording the deflections of the springs. |
| Date |
04.27.1931 |
|
11-Inch High-Speed Tunnel
| Title |
11-Inch High-Speed Tunnel |
| Description |
11-Inch High Speed Tunnel (11-Inch HST) balance. The 11-Inch HST used compressed air from the Variable-Density Tunnel (when it was being depressurized). It was similar to a venturi-type wind tunnel. Without a model, air flow speeds approached Mach 1. One of the unique features of this tunnel was its automatic-recording balance used to measure the forces. John Stack supplied a general description of the balance in NACA TR No. 463 (pp.401-403). "The balance must measure the large range of forces resulting from the wide speed range over which tests are made, and it must be automatic recording because the allowable time for observations is short. The balance measures the lift, drag, and pitching moment by multiplying and recording the deflection of steel springs (cantilever beam type) to which the forces are transmitted. The essential parts consist of a cast-iron cradle in which is mounted a yoke to which the model is attached, the linkages necessary to transmit the forces to the steel springs, and a camera for multiplying and recording the deflections of the springs." The silver horizontal bar in the center of the photograph is an airfoil clamped in the yoke of the balance. As Stack further notes (p. 404): "The model is mounted in the jaws at the ends of the yoke. It is located by means of dowels so that the line joining the intersections of the horizontal and vertical linkages coincides with the quarter-chord axis of the model. |
| Date |
09.12.1930 |
|
11-Inch High-Speed Tunnel
| Title |
11-Inch High-Speed Tunnel |
| Description |
11-Inch High Speed Tunnel (11-Inch HST) balance. The 11-Inch HST used compressed air from the Variable-Density Tunnel (when it was being depressurized). It was similar to a venturi-type wind tunnel. Without a model, air flow speeds approached Mach 1. One of the unique features of this tunnel was its automatic-recording balance used to measure the forces. John Stack supplied a general description of the balance in NACA TR No. 463 (pp. 401-403). "The balance must measure the large range of forces resulting from the wide speed range over which tests are made, and it must be automatic recording because the allowable time for observations is short. The balance measures the lift, drag, and pitching moment by multiplying and recording the deflection of steel springs (cantilever beam type) to which the forces are transmitted. The essential parts consist of a cast-iron cradle in which is mounted a yoke to which the model is attached, the linkages necessary to transmit the forces to the steel springs, and a camera for multiplying and recording the deflections of the springs." The cylinder for the recording film is in upper left corner. The curved part in the center is calibrated so that the angle of attack can be adjusted. Published in NACA TR 463, "The N.A.C.A. High-Speed Wind Tunnel and Tests of Six Propeller Sections," by John Stack, 1933. |
| Date |
09.11.1930 |
|
11-Inch High-Speed Tunnel
| Title |
11-Inch High-Speed Tunnel |
| Description |
11-Inch High Speed Tunnel (11-Inch HST) balance. The 11-Inch HST used compressed air from the Variable-Density Tunnel (when it was being depressurized). It was similar to a venturi-type wind tunnel. Without a model, air flow speeds approached Mach 1. One of the unique features of this tunnel was its automatic-recording balance used to measure the forces. John Stack supplied a general description of the balance in NACA TR No. 463 (pp.401-403). "The balance must measure the large range of forces resulting from the wide speed range over which tests are made, and it must be automatic recording because the allowable time for observations is short. The balance measures the lift, drag, and pitching moment by multiplying and recording the deflection of steel springs (cantilever beam type) to which the forces are transmitted. The essential parts consist of a cast-iron cradle in which is mounted a yoke to which the model is attached, the linkages necessary to transmit the forces to the steel springs, and a camera for multiplying and recording the deflections of the springs." The cylinder in the upper right corner holds the recording film for the balance. |
| Date |
09.12.1930 |
|
Space Oddity
nasa, nasaimageofthedaygalle
…
In this image taken by the H
…
509414main_Voorwerp
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2011-01-11 |
| creator |
NASA |
| identifier |
509414main_Voorwerp |
|
STS-103 Mission Specialist C
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| Description |
STS-103 Mission Specialist Claude Nicollier of Switzerland and his wife, Susana, beam at the camera on the runway at Patrick Air Force Base. The STS-103 crew and their families are preparing to board an airplane that will return them to their home base at the Johnson Space Center in Houston following the successful completion of their mission. Discovery landed in darkness the previous evening, Dec. 27, on runway 33 at KSC's Shuttle Landing Facility at 7:00:47 p.m. EST. This was the first time that a Shuttle crew spent the Christmas holiday in space. The other STS-103 crew members are Commander Curtis L. Brown Jr., Pilot Scott J. Kelly, and Mission Specialists Steven L. Smith, C. Michael Foale (Ph.D.), John M. Grunsfeld (Ph.D.), and Jean-François Clervoy of France. The STS-103 mission supplied the Hubble Space Telescope with six new gyroscopes, six new voltage/temperature improvement kits, a new onboard computer, a new solid state recorder and new data transmitter, and a new fine guidance sensor along with new insulation on parts of the orbiting telescope. This was the 96th flight in the Space Shuttle program and the 27th for the orbiter Discovery |
| Release Date |
12/28/1999 |
|
KENNEDY SPACE CENTER, Fla. -
…
| Description |
KENNEDY SPACE CENTER, Fla. - With its fiery exhaust casting a beam across the water and billows of smoke casting shadows, Space Shuttle Columbia roars into the pre-dawn sky on mission STS-109. Liftoff occurred at 6:22:02:08 a.m. EST (11:22:02:08 GMT). This was the 27th flight of the vehicle and 108th in the history of the Shuttle program. The goal of mission STS-109 is the maintenance and upgrade of the Hubble Space Telescope, to be carried out in five spacewalks. The crew comprises Commander Scott D. Altman, Pilot Duane G. Carey, Payload Commander John M. Grunsfeld, and Mission Specialists Nancy Jane Currie, Richard M. Linnehan, James H. Newman and Michael J. Massimino. After the 11-day mission, Columbia is expected to return to KSC March 12 about 4:35 a.m. EST (09:35 GMT). |
| Release Date |
03/01/2002 |
|
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