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.
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.
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!
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.