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nathan02lee This #image shows NGC 121, a globular #cluster in the #constellation of Tucana (The Toucan). Globular clusters are big balls of old stars that orbit the centers of their galaxies like satellites — the #MilkyWay, for example, has around 150.
NGC 121 belongs to one of our neighboring galaxies, the #Small Magellanic Cloud (SMC). It was discovered in 1835 by English astronomer #JohnHerschel, and in recent years it has been studied in detail by }astronomers wishing to learn more about how stars form and evolve #astronomy #instacool #instagood #likeforlike #hot #new #follow #space #science #cool
8min
  •   nathan02lee #Stars do not live forever — they develop differently depending on their original #mass. In many clusters, all the stars seem to have formed at the same time, although in others we see distinct #populations of stars that are different ages. By studying old #stellar populations in globular clusters, astronomers can effectively use them as tracers for the stellar population of their host galaxies. With an object like NGC 121, which lies close to the Milky Way, #Hubble is able to resolve individual stars and get a very detailed insight 7min
  •   nathan02lee NGC 121 is around 10 billion years old, making it the oldest cluster in its }galaxy; all of the SMC’s other globular clusters are 8 billion years old or younger. However, NGC 121 is still several billions of years younger than its counterparts in the Milky Way and in other nearby galaxies like the #LargeMagellanicCloud 7min
  •   nathan02lee The reason for this age gap is not completely clear, but it could indicate that cluster formation was initially delayed for some reason in the SMC, or that NGC 121 is the sole survivor of an older group of #star clusters 6min

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11min tecnigram
Normal El Tecniquito - Jimmy Coste
tecnigram Esta imagen del telescopio espacial Hubble muestra la nebulosa planetaria #NGC2440 con una estrella muy similar a nuestro sol llegando al final de su vida. La estrella es despojarse de sus capas externas de gas, que formó un capullo alrededor de núcleo restante de la estrella. La luz ultravioleta de la estrella de la muerte hace que el brillo del material. La estrella quemada, llamada una enana blanca, es el punto blanco en el centro. La enana blanca es uno de los más conocidos, con una temperatura de la superficie de casi 400.000 grados Fahrenheit (200.000 grados Celsius). Estructura caótica de la nebulosa sugiere que la estrella derrama su masa episódicamente. Durante cada arrebato, la estrella expulsa material en una dirección diferente. Esto puede verse en los dos lóbulos en forma de pajarita.
regram @ohstarstuff

This Hubble Space Telescope image shows planetary nebula NGC 2440 with a star very similar to our Sun reaching the end of its life. The star is casting off its outer layers of gas, which formed a cocoon around the star’s remaining core. Ultraviolet light from the dying star makes the material glow. The burned-out star, called a white dwarf, is the white dot in the center. The white dwarf is one of the hottest known, with a surface temperature of nearly 400,000 degrees Fahrenheit (200,000 degrees Celsius). The nebula’s chaotic structure suggests that the star shed its mass episodically. During each outburst, the star expelled material in a different direction. This can be seen in the two bow tie-shaped lobes. Our Sun will eventually burn out and shroud itself with stellar debris as well, but luckily not for another 5 billion years.
Credit: NASA, ESA, and K. Noll, STScI #astronomy #nebula #science #hubble #nasa

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11min

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astronomicwonders Simply stunning! Pillars of gas, dust, and young, hot stars fill the center of NGC 7822. At the edge of a giant molecular cloud toward the northern constellation Cepheus, the glowing star forming region lies about 3,000 light-years away. Within the nebula, bright edges and tantalizing shapes are highlighted in this colorful skyscape. The image includes data from both broadband and narrowband filters, mapping emission from atomic oxygen, hydrogen, and sulfur into blue, green, and red hues. The atomic emission is powered by the energetic radiation from the hot stars, whose powerful winds and radiation also sculpt and erode the denser pillar shapes. Stars could still be forming inside the pillars by gravitational collapse, but as the pillars are eroded away, any forming stars will ultimately be cutoff from their reservoir of star stuff. This field spans around 30 light-years at the estimated distance of NGC 7822.
#Hubble #APOD #NASA #Science #Space #Astronomy #Astrophysics #TheUniverse #Cosmos #Universe #Wanderers #Planets #Curiosity #Galaxies #Discovery #Passion #Curiosity #Beautiful #Beauty #Nature #Exploration #NaturalBeauty #Universe #Heavens #HeavenlyBodies #CarlSagan #WeHumansAreCapableOfGreatness#Love #Life #Appreciation #Perspective #Gorgeous
2h

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ohstarstuff This Hubble Space Telescope image shows planetary nebula NGC 2440 with a star very similar to our Sun reaching the end of its life. The star is casting off its outer layers of gas, which formed a cocoon around the star’s remaining core. Ultraviolet light from the dying star makes the material glow. The burned-out star, called a white dwarf, is the white dot in the center. The white dwarf is one of the hottest known, with a surface temperature of nearly 400,000 degrees Fahrenheit (200,000 degrees Celsius). The nebula’s chaotic structure suggests that the star shed its mass episodically. During each outburst, the star expelled material in a different direction. This can be seen in the two bow tie-shaped lobes. Our Sun will eventually burn out and shroud itself with stellar debris as well, but luckily not for another 5 billion years. (Credit: NASA, ESA, and K. Noll, STScI) #astronomy #nebula #science #hubble #nasa 2h

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spitefulginger Hubble was fantastic!! #nasa #space #hubble @catiebug96 2h

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Normal *** The Universe Daily ***
ouruniversedaily One of the most identifiable nebulae in the sky, the Horsehead Nebula in Orion, is part of a large, dark, molecular cloud. Also known as Barnard 33, the unusual shape was first discovered on a photographic plate in the late 1800s. The red glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. The darkness of the Horsehead is caused mostly by thick dust, although the lower part of the Horsehead's neck casts a shadow to the left. Streams of gas leaving the nebula are funneled by a strong magnetic field. Bright spots in the Horsehead Nebula's base are young stars just in the process of forming. Light takes about 1,500 years to reach us from the Horsehead Nebula. The above image is a digital combination of images taken in blue, green, red, and hydrogen-alpha light from the Argentina, and an image taken in infrared light by the orbiting Hubble Space Telescope.
Credit: @nasa Hubble Space Telescope

#horsehead #nebula #NASA #Hubble #astronomy #space #cut4pluto
3h

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blackholestarship I think it's safe to say that NGC 2818 prancing beautifully is an understatement. The gaseous shroud of a dying sun-like star.it could potentially be the glimpse of the future of our very own star, the sun; using #hydrogen and #helium to fuel it's #nuclearfusion at the core to produce #sun rays that earth itself demands daily. NGC 2818 seems to lie within an open star cluster, NGC 2818A, that is some 10 thousand light-years distant toward the southern #constellation, #Pyxis. At the distance of the star cluster, the nebula would be about 4 light-years across. But strangely accurate velocity measurements show that the nebula's own velocity is very different from the cluster's member stars. The result is strong proof that NGC 2818 is only by chance found along the line of sight to the #starcluster and so may not share the cluster's distance or age. The Hubble image is a composite of exposures through narrow-band filters, presenting emission from #nitrogen, #hydrogen, and #oxygen atoms in the #nebula as red, green, and blue areas.

Image Credit: #NASA, #ESA, #Hubble Heritage Team (STScI / AURA)
3h

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Normal astronomicwonders
astronomicwonders Oh, the things I wonder.. The expanding debris cloud from the explosion of a massive star is captured in this multiwavelength composite, combining x-ray and optical images from the Chandra and Hubble telescopes. Identified as E0102-72, the supernova remnant lies about 190,000 light-years away in our neighboring galaxy, the Small Magellanic Cloud. A strong cosmic source of x-rays, E0102 was imaged by the Chandra X-ray Observatory shortly after its launch in 1999. In celebration of Chandra's 10th anniversary, this colorful view of E0102 and its environs was created, including additional Chandra data. An analysis of all the data indicates that the overall shape of E0102 is most likely a cylinder that is viewed end-on rather than a spherical bubble. The intriguing result implies that the massive star's explosion has produced a shape similar to what is seen in some planetary nebulae associated with lower mass stars. At the distance of the Small Magellanic Cloud, this field of view spans about 150 light-years.#Hubble #APOD #NASA #Science #Space #Astronomy #Astrophysics #TheUniverse #Cosmos #Universe #Wanderers #Planets #Curiosity #Galaxies #Discovery #Passion #Curiosity #Beautiful #Beauty #Nature #Exploration #NaturalBeauty #Universe #Heavens #HeavenlyBodies #CarlSagan #WeHumansAreCapableOfGreatness#Love #Life #Appreciation #Perspective #Gorgeous 5h

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astronomicwonders We have a lovely home! From Sagittarius to Scorpius, the central Milky Way is a truly beautiful part of planet Earth's night sky. The gorgeous region is captured here, an expansive gigapixel mosaic of 52 fields spanning 34 by 20 degrees in 1200 individual images and 200 hours of exposure time. Part of ESO's Gigagalaxy Zoom Project, the images were collected over 29 nights with a small telescope under the exceptionally clear, dark skies of the ESO Paranal Observatory in Chile. The breathtaking cosmic vista shows off intricate dust lanes, bright nebulae, and star clusters scattered through our galaxy's rich central starfields. Starting on the left, look for the Lagoon and Trifid nebulae, the Cat's Paw, the Pipe dark nebula, and the colorful clouds of Rho Ophiuchi and Antares (right). #Hubble #APOD #NASA #Science #Space #Astronomy #Astrophysics #TheUniverse #Cosmos #Universe #Wanderers #Planets #Curiosity #Galaxies #Discovery #Passion #Curiosity #Beautiful #Beauty #Nature #Exploration #NaturalBeauty #Universe #Heavens #HeavenlyBodies #CarlSagan #WeHumansAreCapableOfGreatness#Love #Life #Appreciation #Perspective #Gorgeous 8h

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Normal Chandra X-ray Observatory
chandraxray NGC 6543: A Planetary Nebula Gallery

This gallery shows four planetary nebulas from the first systematic survey of such objects in the solar neighborhood made with NASA's Chandra X-ray Observatory. The planetary nebulas shown here are NGC 6543 (aka the Cat's Eye), NGC 7662, NGC 7009 and NGC 6826. X-ray emission from Chandra is colored purple and optical emission from the Hubble Space Telescope is colored red, green and blue. A planetary nebula is a phase of stellar evolution that the sun should experience several billion years from now, when it expands to become a red giant and then sheds most of its outer layers, leaving behind a hot core that contracts to form a dense white dwarf star. A wind from the hot core rams into the ejected atmosphere, creating the shell-like filamentary structures seen with optical telescopes. The diffuse X-ray emission is caused by shock waves as the wind collides with the ejected atmosphere. The properties of the X-ray point sources in the center of about half of the planetary nebulas suggest that many central stars responsible for ejecting planetary nebulas have companion stars. (Credit: X-ray: NASA/CXC/RIT/J.Kastner et al.; Optical: NASA/STScI)
http://chandra.si.edu/photo/2012/pne/

#nasa #chandra #smithsonian #hubble #planetary #nebula #planetarynebula #xray #optical #stellarevolution #evolution #whitedwarf #star #sun #companion #space #science #astronomy #astrophysics #cosmos #universe #wow #learn #astrogram #spacegram #NASAgram
9h
  •   laotzukitty Like beautiful outer space jellyfish. 8h

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Amaro Hubble
__windsor__ At #hubble&hudson 9h

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astronomy_nerd87 Centaurus A or NGC 5128 is a prominent galaxy in the constellation of Centaurus. It was discovered in 1826 by Scottish astronomer James Dunlop from his home in Parramatta, in New South Wales, Australia. There is considerable debate in the literature regarding the galaxy's fundamental properties such as its Hubble type (lenticular galaxy or a giant elliptical galaxy) and distance (10–16 million light-years). NGC 5128 is one of the closest radio galaxies to Earth, so its active galactic nucleus has been extensively studied by professional astronomers. The galaxy is also the fifth brightest in the sky, making it an ideal amateur astronomy target, although the galaxy is only visible from low northern latitudes and the southern hemisphere.

The center of the galaxy contains a supermassive black hole with a mass equivalent to 55 million solar masses, which ejects a relativistic jet that is responsible for emissions in the X-ray and radio wavelengths. By taking radio observations of the jet separated by a decade, astronomers have determined that the inner parts of the jet are moving at about one half of the speed of light. X-rays are produced farther out as the jet collides with surrounding gases resulting in the creation of highly energetic particles. The radio jets of Centaurus A are over a million light years long.

Like other starburst galaxies, a collision is suspected to be responsible for the intense burst of star formation. Spitzer Space Telescope studies have confirmed that Centaurus A is colliding with and devouring a smaller spiral galaxy.
#astronomy #space #cosmos #universe #galaxy #stars #planets #science #physics #comet #nebula #supernova #gravity #Nasa #Hubble #telescope #solar #lunar #asteroid #earth #constellation #nature #beauty #beautiful #amazing #stunning #atheist #atheism
9h

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