Scientists Investigate the Green Glow of Interstellar Comet 3I/ATLAS

Comet 3I/ATLAS, the third known interstellar visitor to our solar system, has not actually changed color; it only appeared to do so once when its gas coma became bright earlier this year. Despite media reports suggesting multiple color changes, scientists clarify that the comet's appearance has remained consistent, with its blue-green coma visible since early September. The comet continues to be a fascinating object for observation and study as it passes through our cosmic neighborhood, with closest approach to Earth on December 19.