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Trifid Nebula - Wikipedia
Messier 20 (The Trifid Nebula) - Science@NASA
The Trifid Nebula - AstroBackyard
Messier 20: Trifid Nebula
Trifid Nebula (Messier 20) - Constellation Guide
Messier 20: A Deep Look at The Trifid Nebula and Surrounds
See Messier 20, the Trifid Nebula | Astronomy Essentials - EarthSky
Messier 20 (The Trifid Nebula) | Astro-Observer
New Hubble Image Reveals Details in the Heart of the Trifid Nebula
Messier 20 (NGC 6514) Trifid Nebula | Sagittarius | Go Astronomy