A starfield is dominated by light brown dust. In the middle is a parabolic gas cloud opening toward the lower right. A bright star is near the center at the apex of the parabolic gas cloud. Please see the explanation for more detailed information.
星空主要由浅棕色尘埃组成。中间是向右下方张开的抛物线气体云。抛物线气体云顶点中心附近有一颗明亮的恒星。有关更多详细信息，请参阅说明。
2023年9月19日 HH 211: Jets from a Forming Star Credit: NASA, ESA, CSA, Webb; Processing: Tom Ray (DIAS Dublin) Explanation: Do stars always create jets as they form? No one is sure. As a gas cloud gravitationally contracts, it forms a disk that can spin too fast to continue contracting into a protostar. Theorists hypothesize that this spin can be reduced by expelling jets. This speculation coincides with known Herbig-Haro (HH) objects, young stellar objects seen to emit jets — sometimes in spectacular fashion. Pictured is Herbig-Haro 211, a young star in formation recently imaged by the Webb Space Telescope (JWST) in infrared light and in great detail. Along with the two narrow beams of particles, red shock waves can be seen as the outflows impact…
