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Another artistic tribute to Hubble. This one is a Spiral Galaxy painted in acrylic with Swarovski crystals by Nusa Stomsek. I wish I could see the original.

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Another artistic tribute to the Hubble Space Telescope. In this one the artist has used three photographs, two from Hubble and her self-portrait. It also references the iconic "Pillars of Creation".

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A snowstorm of galaxies imaged with the Hubble Space Telescope. But each of the snowflakes is a galaxy with billions of stars in it. This populous region of space is 5.4 billion light years away, and it isn't just one cluster of galaxies. It's a place where three galaxy clusters are merging.

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Hubble's 25th anniversary image has been released -- star cluster Westerlund 2. It's a stellar nursery in the constellation Carina, and contains some of the brightest, hottest and most massive stars ever discovered. As is typical of stellar nurseries, it's surrounded by dust. Although this makes observing difficult (or impossible) in visible light, Hubble can also “see” in infrared which can penetrate the dust.

The radiation and winds from the hot young stars erode the gas to form the pillars. (This is also happening the famous “Pillars of Creation,” Hubble's image of the Eagle Nebula.) In addition, the winds create shocks when they hit the walls of gas. This sets off a new wave of star formation. The red dots scattered around are stars that are still forming and not yet hot enough to establish hydrogen fusion.

You can find out more about Starbirth by clicking here.

Last edited by Mona - Astronomy; 04/27/15 03:50 PM.
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A number of professional astronomers were asked to choose their favorite Hubble image. Tanya Hill, Honorary Fellow of the University of Melbourne and Senior Curator (Astronomy) at Museum Victoria, chose this one of the Orion Nebula.. It's a splendid star-forming region, which you can just see in Orion's "sword" with the unaided eye.

Tanya said, “I was a high school student when I first saw the nebula through a small telescope. What I saw on that long ago night was an amazingly delicate and wispy cloud of gas in black and white. One of the wonderful things that Hubble does is to reveal the colours of the universe.”

You can find out more about the constellation Orion here.

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Here is a fantastic montage of 25 of the greatest Hubble Space Telescope images of all time. If you wonder what any of the images are, click on the picture and it will take you to an ESA page that gives you a link to each of them.

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The #Ode to Hubble competition for the under-25s (those born after Hubble was deployed) is from Halley Davies & Martin Hellmich of Canada. Their video Ode to Hubble - Hubble's Universe - is a delight, described as a "handmade multiformat animation about how we discovered the Universe with the help of the Hubble Space Telescope." It even includes a cameo of Edwin Hubble himself, if you watch carefully for the man with his pipe at the telescope.

All the winners and runners-up of both Ode to Hubble compeitions are here.

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A few days ago I put up a link to a picture of Westerlund 2, which was chosen as the 25th anniversary Hubble picture. But there's more. Here's a link to a page with a video that lets you zoom through stars and galaxies to reach the star cluster in close-up. Be sure to set it at full screen.

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Here's the winning Ode to Hubble entry in the over-25 section. I loved the way she juxtaposed the nebulae and the humans. Beautiful selection. Very effective.

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Space telescopes capture images we could never see otherwise. Yet Saturn - which you can see through an amateur telescope - is still one of the most beautiful sights of all. And even more so when imaged by the Hubble Space Telescope.

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