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Looking like a hungry monster, this youngest-known supernova remnant in our galaxy lies 10,000 light years away in the constellation Cassiopeia. The light from this exploding star first reached Earth in the 1600s.

This stunning space wallpaper shows the youngest-known supernova remnant in our galaxy, which lies light years away in the constellation Cassiopeia. The light from this exploding star first reached Earth in the

Monday, Nov. 3, 2014: The Iris Nebula, NGC 7023, lies 1,300 light-years away in the constellation Cepheus. Atoms floating in the interstellar medium, including carbon and silicon, combine into tiny particles about the dimension of a visible light wave, causing scattering of light. The scattering is more efficient for blue light than red light, so the interstellar clouds such as this one form reflection nebulas of blue color when starlight bounces from the clouds. %u2014 Tom Chao

The Iris Nebula, NGC lies light-years away in the constellation Cepheus. Atoms floating in the interstellar medium, including carbon and silicon, combine into tiny particles about the dimension of a visible light wave, causing scattering of light.

Emission Nebula NGC 6188

Emission Nebula NGC 6188 - 4000 light years away in the constellation Ara

Hubble Offered A Rare, Ring-Side Seat At The Death Of A Star

HubbleSite - Picture Album: The Expanding Light Echo of Red Supergiant Star Monocerotis

New Cosmic Photo Reveals Eye-Catching Rosette Nebula - This image taken by NASA's Wide-field Infrared Survey Explorer (WISE) shows the Rosette nebula located within the constellation Monoceros (the Unicorn)

A Rose in Space - NGC 2237 This flower-shaped nebula, also known by the less romantic name NGC is a huge star-forming cloud of dust and gas in our Milky Way galaxy. Estimates of the nebula’s.

NGC 604 is about 50 times the size of the familiar Orion Nebula, here shown approximately to scale. Both are hotbeds of star formation but on vastly different scales. A cluster of some 200 massive type O and Wolf-Rayet stars ionize NGC 604, setting it aglow in vivid reds and green, similar to the Orion Nebula. - Credit:  NASA / Hubble Heritage Team (AURA / STScI) / Wikipedia

Photo: This festively colorful nebula, called NGC is one of thelargest known seething cauldrons of star birth in a nearby galaxy.

Friday, May 9, 2014: Astronomers who studied two star clusters using NASA's Chandra X-ray Observatory and infrared telescopes discovered that the simplest ideas for the birth of star clusters cannot work. This composite image shows one of the clusters, NGC 2024, which lies in the center of the Flame Nebula, about 1,400 light years from Earth. In this image, X-rays from Chandra appear purple, while infrared data from NASA's Spitzer Space Telescope appear red, green and blue.

Inside the Flame Nebula. This composite image shows the star cluster, NGC Which is found in the center of the Flame Nebula about …… ly from Earth. In this image, NASA

Cassiopeia A, supernova remnant

Cassiopeia A : This extraordinarily deep Chandra image shows Cassiopeia A (Cas A, for short), the youngest supernova remnant in the Milky Way. (Credit: NASA/CXC/MIT/UMass Amherst/M.D.Stage et al.

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The twisted shockwaves of an exploded star Veil Nebula ‘south-eastern knot’

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