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Geneviève de Messières

The explosive death of a star created this debris cloud, Cassiopeia A, still expanding at shock-wave speeds. This photograph combines an optical image taken by Ken Crawford of the Rancho Del Sol Observatory and X-ray images from NASA's orbiting X-ray telescope NuSTAR, the first telescope to create focused images of high-energy X-rays. Via apod.nasa.gov.

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IC 1340 is the eastern segment of the Veil Nebula, itself also called the Cygnus Loop. It is the result of a supernova explosion visible from Earth about 10,000 years ago. It is about 1,400 light years away from Earth. IC 1340 is about 12 light-years across.

IC 443 is a supernova remnant known as the Jellyfish Nebula. It is found in the constellation Gemini about 5,000 light years from Earth. The supernova blast itself brightened the night sky about 30,000 years ago. The star to the right of the Jellyfish is Eta Geminorum.

Globular cluster M5, containing 100,000 stars or more within a volume 165 light-years in diameter, is located in the Milky Way's halo, about 25,000 light-years away from Earth. It's stars are estimated to be nearly 13 billion years old.

N11: Star Clouds of the LMC - APOD - NASA

Between the constellations Libra & Serpens is the globular star cluster M5, packing 100,000 stars or more, bound by gravity, into a region about 165 light-years in diameter. It lies some 25,000 light-years away from planet Earth. The stars in M5 are some of the oldest in the Milky Way, some 13 billion years old.

Globular star cluster Messier 9 (M9) has over 300,000 stars within a diameter of about 90 light-years. It is 25,000 light-years from Earth, near the central bulge of our Milky Way galaxy in the constellation of Sagittarius. Imagine the night sky on a planet orbiting one of these stars!

NGC 7635 is known simply as The Bubble Nebula, a 10 light-year diameter bubble blown by intense stellar winds from the O-class star above and right of the Bubble's center. That star is several hundred thousand times more luminous and around 45 times more massive than Earth's sun. The Bubble Nebula is 11,000 light-years away toward the constellation Cassiopeia.

Blue reflection nebula vdB1, is about 5 light years across and is 1,600 light years from Earth toward the constellation Cassiopeia. To the right, emerging from a bok globule, are young variable stars V633 Cas and V376 Cas.

Beautiful, flower-like, star-forming nebula NGC 7129, located about 3,000 light-years from Earth in the constellation Cepheus.

Wispy tendrils of hot dust and gas glow brightly in this ultraviolet image of the Cygnus Loop nebula, taken by NASA’s Galaxy Evolution Explorer. The nebula lies about 1,500 light-years away, and is a supernova remnant, left over from a massive stellar explosion that occurred between 5,000 to 8,000 years ago.

Massive star IRS 4 is beginning to spread its wings. Born only about 100,000 years ago, material streaming out from this newborn star has formed the nebula dubbed Sharpless 2-106 Nebula (S106)