APOD: 2025 December 31 Б HH 222: The Waterfall Nebula
31.12.2025 | Астрономическая картинка дня

What created the Waterfall Nebula? The origin is still being researched. The structure, officially designated Herbig-Haro 222, appears in the region of NGC 1999 in the Great Orion Molecular Cloud complex. The elongated gaseous stream stretches about ten light years but appears similar to a long waterfall on Earth.