<ul><li>Astronomers have discovered a mysterious population of 'hidden' galaxies that could challenge current theories about galaxy existence, formation, and evolution.</li><li>Data from the Herschel Space Observatory revealed nearly 2,000 distant galaxies, previously invisible to regular telescopes, in the deepest image of the far-infrared sky.</li><li>These hidden galaxies might be a significant source of the universe's energy in infrared light, potentially reshaping our understanding of galaxy formation and energy production.</li><li>To confirm the existence of these galaxies, new telescopes like the proposed PRIMA, a next-generation far-infrared telescope, will be crucial in unveiling the universe's hidden secrets.</li></ul>

Could ghost galaxies hold the universe’s biggest secrets?

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