What discovery timeline and associated research institutions announced the finding of the massive, previously hidden local cloud?

Answer

Around April 2025 by teams including Rutgers and the University of Arizona

The confirmation of the massive, cold molecular cloud system situated in our local stellar neighborhood was a significant recent event in astronomy. The discovery was formally announced around April 2025. The research effort leading to this confirmation involved collaborations between several institutions, specifically naming teams including researchers affiliated with Rutgers University and the University of Arizona. This finding revealed a structure spanning hundreds of light-years relatively close to the Solar System, offering an unprecedented local laboratory for studying star formation.

What discovery timeline and associated research institutions announced the finding of the massive, previously hidden local cloud?

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