A giant cosmic river stretching trillions of miles is found in Orions

Multipoint observations showed the streamer stretching nearly 30 arcseconds across the sky, or about 12,000 astronomical units. Miville-Deschênes & G. Lagache 2005) with the location of GW Ori marked in red. A zoomed-in view of the region around GW Ori is shown in the lower right corner. The distance also places GW Ori within the system’s Bondi–Hoyle radius, so it remains gravitationally bound to its cloud parent. The collective results suggest that GW Ori is not a runaway but rather still bound to its cosmic birthplace.