Astronomers are celebrating NASA’s Hubble space telescope’s 33rd launch anniversary with an ethereal photo of a nearby star-forming region, NGC 1333. The nebula is in the Perseus molecular cloud, and located approximately 960 light-years away.
Hubble’s colorful view, showcased through its unique capability to obtain images from ultraviolet to near-infrared light, unveils an effervescent cauldron of glowing gasses and pitch-black dust stirred up and blown around by several hundred newly forming stars embedded within the dark cloud. Hubble just scratches the surface because most of the star birthing firestorm is hidden behind clouds of fine dust – essentially soot – that are thicker toward the bottom of the image. The blackness in the image is not empty space, but filled with obscuring dust.
The Hubble Space Telescope was launched on April 24, 1990, meaning that it completed its 33rd year in space earlier this month. Astronomers are celebrating this anniversary with an exquisite image of a relatively nearby star-forming region.
NGC 1333 is a nebula in the Perseus molecular cloud located about 960 light-years-away. Interestingly, molecules that are considered the building blocks of life were discovered in the same molecular cloud recently.
To capture this image, Hubble peered through a veil of dust on the edge of a giant cloud of cold molecular hydrogen – the raw material for fabricating new stars and planets under the relentless pull of gravity. The image underscores the fact that star formation is a messy process in our rambunctious universe.
Ferocious stellar winds, likely from the bright blue star at the top of the image, are blowing through a curtain of dust. The fine dust scatters the starlight at blue wavelengths.
At the top of the image, fierce stellar winds are blowing through the curtain of dust. This fine dust scatters the starlight at blue wavelengths.
Further down the image, another bright, super-hot star shines through filaments of obscuring dust. This is what looks like the sun shining through scattered clouds. The diagonal string of fainter stars look reddish because the dust is filtering the starlight and allowing red light to go through.
The bottom of the picture presents a keyhole peek deep into the dark nebula. Hubble captures the reddish glow of ionized hydrogen. It looks like a fireworks finale, with several overlapping events. This is caused by pencil-thin jets shooting out from newly forming stars outside the frame of view. These stars are surrounded by circumstellar disks, which may eventually produce planetary systems, and powerful magnetic fields that direct two parallel beams of hot gas deep into space, like a double light saber from science fiction films. They sculpt patterns on the hydrogen cocoon, like laser-light-show tracings. The jets are a star’s birth announcement.
These overlapping events are caused by really thin jets shooting out from newly-forming stars outside the frame of view. These stars are surrounded by discs that may eventually produce planets. There are also powerful magnetic fields that direct two parallel beams of hot gas deep into space. These beams sculpt patterns on the hydrogen gas.
This view offers an example of the time when our Sun and planets formed inside such a dusty molecular cloud, 4.6 billion years ago. Our Sun didn’t form in isolation but was instead embedded inside a mosh pit of frantic stellar birth, perhaps even more energetic and massive than NGC 1333.
The Hubble Space Telescope is a project of international cooperation between NASA and ESA. NASA’s Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope. The Space Telescope Science Institute (STScI) in Baltimore, Maryland, conducts Hubble and Webb science operations. STScI is operated for NASA by the Association of Universities for Research in Astronomy, in Washington, D.C.
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