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Deep-Sky Objects

The constellation Lepus, the Crab Nebula (M1), and the Raspberry Nebula (IC 418)

Deep-Sky Objects, Stars

The Dolphin’s Diamonds, the Helix Nebula (NGC 7293), and the Blue Flash Nebula (NGC 6905)

America once considered nuking the Moon, but they settled on smashing things into it instead

This 1874 lithograph was created by Étienne Léopold Trouvelot with the 15-inch refractor at the Harvard College Observatory, for the purpose of measuring the nebula’s extent. A glass plate with dark black lines was placed on the focus of the telescope for marking placement. No wonder it shows no central star.

Looking inside the Ring Nebula

Deep-Sky Objects, Galaxies

A trio of open clusters in Cygnus, planetary nebula NGC 7139, and elliptical galaxy NGC 7103

Deep-Sky Objects

Open cluster NGC 2421, open cluster NGC 2477, and emission nebula Sharpless 2–311

Deep-Sky Objects, Observing

101 Must-See Cosmic Objects: The Omega Nebula

Dark Wolf Nebula and Gum 55

Deep-Sky Objects, Science

ESO captures Dark Wolf Nebula stalking across the Milky Way

Galaxies, Science

Blowing bubbles in the Carina Nebula

Galaxies, Science

Hubble observes a dwarf galaxy with a bright nebula

The light and dark face of a star-forming nebula

Exotic Objects, Stars

Hubble captures the beating heart of the Crab Nebula