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Multiwavelength M81
| Title |
Multiwavelength M81 |
| Description |
This beautiful galaxy is tilted at an oblique angle on to our line of sight, giving a "birds-eye view" of the spiral structure. The galaxy is similar to our Milky Way, but our favorable view provides a better picture of the typical architecture of spiral galaxies. M81 may be undergoing a surge of star formation along the spiral arms due to a close encounter it may have had with its nearby spiral galaxy NGC 3077 and a nearby starburst galaxy (M82) about 300 million years ago. M81 is one of the brightest galaxies that can be seen from the Earth. It is high in the northern sky in the circumpolar constellation Ursa Major, the Great Bear. At an apparent magnitude of 6.8 it is just at the limit of naked-eye visibility. The galaxy's angular size is about the same as that of the Full Moon. This image combines data from the Hubble Space Telescope, the Spitzer Space Telescope, and the Galaxy Evolution Explorer (GALEX) missions. The GALEX ultraviolet data were from the far-UV portion of the spectrum (135 to 175 nanometers). The Spitzer infrared data were taken with the IRAC 4 detector (8 microns). The Hubble data were taken at the blue portion of the spectrum. |
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Brief History of the Univers
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| Title |
Brief History of the Universe |
| Description |
This artist's timeline chronicles the history of the universe, from its explosive beginning to its mature, present-day state. Our universe began in a tremendous explosion known as the Big Bang about 13.7 billion years ago (left side of strip). Observations by NASA's Cosmic Background Explorer and Wilkinson Anisotropy Microwave Probe revealed microwave light from this very early epoch, about 400,000 years after the Big Bang, providing strong evidence that our universe did blast into existence. Results from the Cosmic Background Explorer were honored with the 2006 Nobel Prize for Physics. A period of darkness ensued, until about a few hundred million years later, when the first objects flooded the universe with light. This first light is believed to have been captured in data from NASA's Spitzer Space Telescope. The light detected by Spitzer would have originated as visible and ultraviolet light, then stretched, or redshifted, to lower-energy infrared wavelengths during its long voyage to reach us across expanding space. The light detected by the Cosmic Background Explorer and the Wilkinson Anisotropy Microwave Probe from our very young universe traveled farther to reach us, and stretched to even lower-energy microwave wavelengths. Astronomers do not know if the very first objects were either stars or quasars. The first stars, called Population III stars (our star is a Population I star), were much bigger and brighter than any in our nearby universe, with masses about 1,000 times that of our sun. These stars first grouped together into mini-galaxies. By about a few billion years after the Big Bang, the mini-galaxies had merged to form mature galaxies, including spiral galaxies like our own Milky Way. The first quasars ultimately became the centers of powerful galaxies that are more common in the distant universe. NASA's Hubble Space Telescope has captured stunning pictures of earlier galaxies, as far back as ten billion light-years away. |
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Hubble's Deepest View of the
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| Title |
Hubble's Deepest View of the Universe Unveils Bewildering Galaxies across Billions of Years |
| 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. One peek into a small part of the sky, one giant leap back in time. The Hubble telescope has provided mankind's deepest, most detailed visible view of the universe. Representing a narrow "keyhole" view stretching to the visible horizon of the universe, the Hubble Deep Field image covers a speck of the sky only about the width of a dime 75 feet away. Though the field is a very small sample of the heavens, it is considered representative of the typical distribution of galaxies in space, because the universe, statistically, looks largely the same in all directions. Gazing into this small field, Hubble uncovered a bewildering assortment of at least 1,500galaxies at various stages of evolution. Read more: * Release Text [ http://hubblesite.org/newscenter/archive/releases/1996/01/text/ ] |
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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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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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Hubble Pinpoints Distant Sup
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| Title |
Hubble Pinpoints Distant Supernovae |
| 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. Peering halfway across the universe to analyze light from exploded stars that died long before our Sun even existed, the Hubble telescope has allowed astronomers to determine that the expansion of the cosmos has not slowed since the initial impetus of the Big Bang. Thus, the universe's expansion should continue to balloon outward indefinitely. These results are based on unprecedented distance measurements to supernovae that are so far away they allow astronomers to determine if the universe was expanding at a faster rate long ago. These images showcase three of the supernovae used in the survey. The arrows in the bottom row of pictures pinpoint these exploding stars, the top row of images shows the regions where the supernovae reside. Read more: * Release Text [ http://hubblesite.org/newscenter/archive/releases/1998/02/text/ ] |
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Hubble Spies Huge Clusters o
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| Title |
Hubble Spies Huge Clusters of Stars Formed by Ancient Encounter |
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Hubble Spies Huge Clusters o
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| Title |
Hubble Spies Huge Clusters of Stars Formed by Ancient Encounter |
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Hubble Spies Huge Clusters o
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| Title |
Hubble Spies Huge Clusters of Stars Formed by Ancient Encounter |
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Hubble Spies Huge Clusters o
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| Title |
Hubble Spies Huge Clusters of Stars Formed by Ancient Encounter |
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Hubble Spies Huge Clusters o
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| Title |
Hubble Spies Huge Clusters of Stars Formed by Ancient Encounter |
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NGC 4013: A Galaxy on the Ed
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| Title |
NGC 4013: A Galaxy on the Edge |
| General Information |
What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. Back to top [ #top ] |
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Hubble Spies Huge Clusters o
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| Title |
Hubble Spies Huge Clusters of Stars Formed by Ancient Encounter |
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Hubble Spies Huge Clusters o
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| Title |
Hubble Spies Huge Clusters of Stars Formed by Ancient Encounter |
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Hubble Spies Huge Clusters o
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| Title |
Hubble Spies Huge Clusters of Stars Formed by Ancient Encounter |
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Burst of Star Formation Driv
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| Title |
Burst of Star Formation Drives Bubble in Galaxy's Core |
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Stellar 'Fireworks Finale' C
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| Title |
Stellar 'Fireworks Finale' Came First in the Young Universe |
| 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. Back to top [ #top ] |
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Hubble's Infrared Camera is
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| Title |
Hubble's Infrared Camera is Back in Business ? New Images Released |
| General Information |
What is an Early Release Observation? A photograph of a celestial object that demonstrates the performance of a new Hubble camera. Back to top [ #top ] |
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Hubble's Infrared Camera is
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| Title |
Hubble's Infrared Camera is Back in Business ? New Images Released |
| General Information |
What is an Early Release Observation? A photograph of a celestial object that demonstrates the performance of a new Hubble camera. Back to top [ #top ] |
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Hubble's Ultraviolet Views o
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| Title |
Hubble's Ultraviolet Views of Nearby Galaxies Yield Clues to Early Universe |
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Hubble's Infrared Camera is
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| Title |
Hubble's Infrared Camera is Back in Business ? New Images Released |
| General Information |
What is an Early Release Observation? A photograph of a celestial object that demonstrates the performance of a new Hubble camera. Back to top [ #top ] |
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A Galaxy Blazes With Star Fo
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| Title |
A Galaxy Blazes With Star Formation |
| General Information |
What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. Back to top [ #top ] |
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A Galaxy That's All Wound Up
| Title |
A Galaxy That's All Wound Up |
| General Information |
What is Hubble Heritage? A monthly showcase of new and archival Hubble images. Go to the Heritage site. Back to top [ #top ] |
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Hands-On Book of Hubble Imag
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| Title |
Hands-On Book of Hubble Images Allows the Visually Impaired to "Touch the Universe |
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Far-Flung Supernovae Shed Li
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| Title |
Far-Flung Supernovae Shed Light on Dark Universe |
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Far-Flung Supernovae Shed Li
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| Title |
Far-Flung Supernovae Shed Light on Dark Universe |
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Far-Flung Supernovae Shed Li
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| Title |
Far-Flung Supernovae Shed Light on Dark Universe |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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Far-Flung Supernovae Shed Li
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| Title |
Far-Flung Supernovae Shed Light on Dark Universe |
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Far-Flung Supernovae Shed Li
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| Title |
Far-Flung Supernovae Shed Light on Dark Universe |
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Far-Flung Supernovae Shed Li
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| Title |
Far-Flung Supernovae Shed Light on Dark Universe |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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The Secret Lives of Galaxies
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| Title |
The Secret Lives of Galaxies Unveiled in Deep Survey |
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Too Fast, Too Furious: A Gal
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| Title |
Too Fast, Too Furious: A Galaxy's Fatal Plunge |
| 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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Too Fast, Too Furious: A Gal
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| Title |
Too Fast, Too Furious: A Galaxy's Fatal Plunge |
| 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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Too Fast, Too Furious: A Gal
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| Title |
Too Fast, Too Furious: A Galaxy's Fatal Plunge |
| 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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Too Fast, Too Furious: A Gal
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| Title |
Too Fast, Too Furious: A Galaxy's Fatal Plunge |
| 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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Too Fast, Too Furious: A Gal
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| Title |
Too Fast, Too Furious: A Galaxy's Fatal Plunge |
| 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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Too Fast, Too Furious: A Gal
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| Title |
Too Fast, Too Furious: A Galaxy's Fatal Plunge |
| 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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Too Fast, Too Furious: A Gal
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| Title |
Too Fast, Too Furious: A Galaxy's Fatal Plunge |
| 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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Too Fast, Too Furious: A Gal
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| Title |
Too Fast, Too Furious: A Galaxy's Fatal Plunge |
| 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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