| − | The Hourglass nebula if found inside the brightest region of M8. First observed by John Herschel, its name is derived from its shape. It is however a separate object from the Engraved Hourglass nebula in [[Musca]]. The extremely large, hot stars illuminate this region, specifically Herschel 36. In 2006, scientists discovered four [[Herbig-Haro object]]s.<ref name=messier-objects/> These are occur where jets of gas collide with other gas and [[dust]] at high speeds and are often found near young stars. | + | The Hourglass nebula if found inside the brightest region of M8. First observed by John Herschel, its name is derived from its shape. It is however a separate object from the Engraved Hourglass nebula in [[Musca]]. The extremely large, hot stars illuminate this region, specifically Herschel 36. In 2006, scientists discovered four [[Herbig–Haro object|Herbig-Haro objects]].<ref name=messier-objects/> These are occur where jets of gas collide with other gas and [[dust]] at high speeds and are often found near young stars. |