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NASA\u2019s NIRCam has directly captured the alignment of bipolar jets in a group of protostellar outflows in Serpen\u2019s North region of the Serpens nebula, finally confirming long-standing theories about star formation.<\/strong><\/p>\n For the first time, a phenomenon long theorized by astronomers has been directly imaged by James Webb Space Telescope\u2019s Near-Infrared Camera (NIRCam). The groundbreaking image of the Serpens Nebula reveals crucial insights into the process of star formation, specifically showcasing an intriguing group of protostellar outflows.<\/p>\n These outflows are formed when jets of gas, expelled from newborn stars, collide with surrounding gas and dust at high velocities. Unlike the typically varied orientations of such objects within a region, these outflows are remarkably aligned in the same direction, akin to sleet pouring down during a storm.<\/p>\n \u201cAstronomers have long assumed that as clouds collapse to form stars, the stars will tend to spin in the same direction,\u201d said principal investigator Klaus Pontoppidan of NASA\u2019s Jet Propulsion Laboratory in Pasadena, California. \u201cHowever, this has not been seen so directly before. These aligned, elongated structures are a historical record of the fundamental way that stars are born.\u201d<\/p>\n As an interstellar gas cloud collapses to form a star, it spins more rapidly, forcing the removal of some angular momentum for the gas to continue moving inward. This results in the formation of a disk around the young star, akin to a whirlpool around a drain. Swirling magnetic fields in this inner disk launch material into twin jets, which shoot outwards in opposite directions, perpendicular to the disk.<\/p>\n The Webb image captures these jets as bright, clumpy streaks appearing red, indicative of shockwaves from the jets hitting surrounding gas and dust. The red color signifies the presence of molecular hydrogen and carbon monoxide.<\/p>\n \u201cThis area of the Serpens Nebula \u2013 Serpens North \u2013 only comes into clear view with Webb,\u201d said lead author Joel Green of the Space Telescope Science Institute in Baltimore. \u201cWe\u2019re now able to catch these extremely young stars and their outflows, some of which previously appeared as just blobs or were completely invisible in optical wavelengths because of the thick dust surrounding them.\u201d<\/p>\n Several forces can potentially alter the direction of these outflows during a young star\u2019s formative years. One such force is the gravitational interaction between binary stars, causing them to spin around each other and wobble, thus twisting the direction of their outflows over time.<\/p>\n The Serpens Nebula, located 1 300 light-years from Earth, is a young star-forming region, only one or two million years old. It houses a particularly dense cluster of newly forming stars, approximately 100 000 years old, located at the center of the image. Some of these stars will eventually reach the mass of our Sun.<\/p>\n \u201cWebb is a young stellar object-finding machine,\u201d Green said. \u201cIn this field, we pick up signposts of every single young star, down to the lowest mass stars.\u201d<\/p>\n \u201cIt\u2019s a very complete picture we\u2019re seeing now,\u201d added Pontoppidan.<\/p>\n Throughout the region in the image, filaments, and wisps of different hues represent reflected starlight from still-forming protostars within the cloud. In some areas, dust in front of the reflection appears as an orange, diffuse shade. This region has also been home to other significant discoveries, including the flapping \u201cBat Shadow,\u201d named after 2020 data from NASA\u2019s Hubble Space Telescope revealed a star\u2019s planet-forming disk to flap or shift. This feature is visible at the center of the Webb image.<\/p>\n \n