The solar system lies inside a structure called the Local Bubble some 1000 light years across – and a map of its surface shows it is the site of star formation
Leah Hustak These regions appear to lie on a deformed surface 1000 light years across, called the Local Bubble. The bubble’s interior – which is where the solar system is found – is mostly empty space. But its shell comprises cold gas and dust, left over from dead stars exploding. New stars are now forming from this material.
We’ve known about the existence of the Local Bubble – and about the star-forming regions nearest to the solar system – for decades. ButAdvertisement, which maps the positions, distances and motions of stars with high precision. This allowed Zucker and her team to construct a three-dimensional map of the different star-forming regions. The map also used Gaia’s motion data to chart how the Local Bubble has evolved over time and created the star-forming regions.
“We’ve discovered a common origin for all nearby star formation,” says Zucker. “We can essentially explain how every single star-forming region within 500 light years from our sun began.”
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