Artist's drawing of a protostar. Protostar is an early stage in the evolution of a star that usually grows to the point of beginning nuclear fusion and becoming a star by gathering mass. [1] It is made of a contracting cloud of cold and dark interstellar medium (mostly hydrogen gas). Protostars has lower temperature than an ordinary star.

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2022年11月17日 · Looking at the James Webb Space Telescope’s latest showstopping image of a faraway protostar is like peering back to a time when the sun and planets of our solar system were just beginning to...

2022年11月16日 · The protostar within the dark cloud L1527, shown in this image from NASA’s James Webb Space Telescope Near-Infrared Camera (NIRCam), is embedded within a cloud of material feeding its growth. Ejections from the star have cleared out cavities above and below it, whose boundaries glow orange and blue in this infrared view.

Webb Telescope: A prominent protostar in Perseus. Article. 4 Min Read. NASA’s Webb Reveals New Features in Heart of Milky Way. Multimedia Go To Galleries Go To Galleries Keep Exploring Discover More Topics From NASA OSDR Summer 2025 Internships OSDR Chats - Oluwamayowa Akinsuyi NASA Langley Research Center 2024 Annual Report ...

A protostar is a star in the process of formation. They are created when a globule, a dusty and gaseous nebula, condenses under gravity. The globule acts as a cocoon. Because of this, protostars are generally invisible to the universe at large, except at infrared wavelengths.

T-ReCS image at 11 7 microns of the protostar binary SVS20 in the Serpens Cloud core (geminiann05007b).jpg 300 × 348; 58 KB. T-ReCS image at 11 7 microns of the protostar binary SVS20 in the Serpens Cloud core (geminiann05007b).tiff 300 × 348; 190 KB. The Galactic Bubble RCW 120.jpg 2,000 × 1,997; 498 KB.

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A protostar is a very young star that is still gathering mass from its parent molecular cloud. It is the earliest phase in the process of stellar evolution. [1] For a low-mass star (i.e. that of the Sun or lower), it lasts about 500,000 years. [2]

2022年11月16日 · Now the telescope is giving astronomers clues about the formation of a new star, with a stunning image of an hourglass-shaped dark cloud surrounding a protostar, an object known as L1527.