Hubble spots ‘impossible light’ in deep space, scientists search for answers

Astronomers have identified a tiny yet powerful early galaxy, MXDFz4, emitting ultraviolet light that was thought impossible for its epoch. The galaxy was first observed by the Hubble Space Telescope and later confirmed by other major observatories. This finding sheds new light on how the first galaxies cleared cosmic fog, enabling light to travel freely across the universe.