May 21, 2026

The Trifid is one of the youngest known star-forming regions, only about 300,000 years old — a baby nebula in cosmic terms. Its name comes from Latin "trifidus" (three-lobed): three dark dust lanes carve up the bright red emission glow, all radiating from a single massive star at the centre, HD 164492, whose ultraviolet light is ionizing the hydrogen around it. What makes M20 unique is that it contains all three nebula types at once — the red emission core (glowing hydrogen), a blue reflection nebula to the north (dust scattering starlight from a nearby blue star), and the dark absorption lanes (dust silhouetted against the brighter gas behind). It sits 5,200 light-years away in Sagittarius, projected against the densest part of the Milky Way.

M83 is one of the closest and brightest barred spiral galaxies to the Milky Way, and from southern latitudes it is a true showpiece — face-on, with bold spiral arms visible in even modest telescopes. It is unusually active in producing massive stars and has been the site of six recorded supernovae in the last century, more than almost any other galaxy. From Atacama it passes nearly overhead.

M8 gets its name from the dark "lagoon" — a channel of light-absorbing dust that splits the bright pink glow of hydrogen gas in two. The whole nebula is 110 light-years across and is actively forming new stars: at its heart sits the Hourglass Nebula, a region so violently heated by the young O-type star Herschel 36 that gas is being blown outward at supersonic speeds. The blue-white star cluster NGC 6530, embedded in the nebula, is the result of star formation that happened just a few million years ago — yesterday, in cosmic time.

Omega Centauri was absolutely breathtaking — the largest and brightest globular cluster in the Milky Way, resolved into a dazzling ball of millions of stars. At 10 million stars and possibly the remnant core of a dwarf galaxy, it's unlike any other cluster.