The Keyhole Nebula (which is also known as the Carina Nebula or NGC 3372) is a glowing cloud of gas, dust, and stars some 8000 light years distant toward the constellation Carina. The Keyhole Nebula contains both bright regions that glow by means of fluorescence emission from ionized gas, and dark regions that obscure background light by means of dense molecular gas and dust.
NGC 2207 & IC 2163 are a pair of colliding spiral galaxies about 80 mly away in Canis Major. So far 4 supernovae have been observed in NGC 2207. The most recent encounter peaked 40 Ma. The smaller galaxy is swinging around counter-clockwise, & is now slightly behind the larger galaxy. Wikipedia
This NASA/ESA Hubble Space Telescope image shows an elliptical galaxy called NGC 2865. It lies just over 100 million light-years away from us in the constellation of Hydra — The Sea Serpent — and was discovered in 1835 by astronomer John Herschel.
Trisected Nebula Seen in Fresh Detail. A new image of the Trifid Nebula, named by English astronomer John Herschel, was taken with the Wide-Field Imager camera attached to the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in northern Chile. Three different regions of the nebula can be seen in the image.
Hubble finds a galaxy fit to burst ~ "This NASA/ESA Hubble Space Telescope image reveals the vibrant core of the galaxy NGC 3125. Discovered by John Herschel in 1835, NGC 3125 is a great example of a starburst galaxy — a galaxy in which unusually high numbers of new stars are forming, springing to life within intensely hot clouds of gas."
NGC 5979, a planetary nebula in Triangulum Australe --- GC 5979 is a planetary nebula of a little over ⅔ of a light-year across, located some 11,700 light-years away from Earth in the southern constellation of Triangulum Australe (the Southern Triangle), while it is moving away from us at only about 23 kilometers per second.