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Composite image of the star-forming region NGC 1333 obtained by combining data from the 8.2 m Subaru Telescope and the Digitized Sky Survey. (Image credit: NAOJ, NOAO\/AURA\/NSF, Robert Gendler, Roberto Colombari)<\/p>\n
QUICK FACTS<\/p>\n
What it is: Reflection nebula NGC 1333 and binary star system SVS 13<\/p>\n
Where it is: 1,000 light-years away in the constellation Perseus<\/p>\n
When it was shared: Dec. 16, 2025.<\/p>\n
Go outside after dark this winter and look to the southeast, and you’ll see some of the brightest stars in the night sky \u2014 Orion’s Belt, Betelgeuse, Sirius, Aldabaran and Capella. Just above this melee is the quieter constellation Perseus, which lacks bright stars but hosts something extraordinary that the naked eye can’t see \u2014 the explosive birth of new stars.<\/p>\n
Lurking within the Perseus Molecular Cloud is NGC 1333, nicknamed the Embryo Nebula because it contains many young, hot stars that are teaching astronomers just what goes on when a star is born. NGC 1333 is a reflection nebula, meaning a cloud of gas and dust illuminated by the intense light coming from newly forged stars, some of which appear to be regularly spewing jets of matter. It’s one of the closest star-forming regions to our solar system<\/a>. On Dec. 16. astronomers published the most detailed images ever<\/a> of a jet launched by a newborn star, called SVS 13, which revealed a sequence of nested, ring-like structures. The finding is evidence that the star has been undergoing an outburst \u2014 releasing an immense amount of energy \u2014 for decades.<\/p>\n <\/p>\n The discovery, which the researchers described in the journal Nature Astronomy<\/a>, marks the first direct observational confirmation of a long-standing theoretical model of how young stars feed on, and then explosively expel, surrounding material.<\/p>\n You may like<\/p>\n The researchers captured the high-resolution, 3D view of a fast-moving jet emitted from one of SVS 13’s young stars using the Atacama Large Millimeter\/submillimeter Array (ALMA) radio telescope array in Chile. Within the image, they identified more than 400 ultra-thin, bow-shaped molecular rings. Like tree rings that mark the passage of time, each ring marks the aftermath of an energetic outburst from the young star’s early history. Remarkably, the youngest ring matches a bright outburst seen in the SVS 13 system in the early 1990s, allowing researchers to directly connect a specific burst of activity in a forming star with a change in the speed of its jet. It’s thought that sudden bursts in jet activity are caused by large amounts of gas falling onto a young star.<\/p>\n “These images give us a completely new way of reading a young star’s history,” said study co-author Gary Fuller<\/a>, a professor at the University of Manchester. “Each group of rings is effectively a time-stamp of a past eruption. It gives us an important new insight into how young stars grow and how their developing planetary systems are shaped.”<\/p>\n For more sublime space images, check out our Space Photo of the Week archives<\/a>.<\/p>\n