Invisible Invaders (IMAGE) Columbia Climate School Caption Using lasers, scientists have imaged hundreds of thousands of previously invisible tiny plastic particles in bottled water. Credit Naixin Qian, Columbia University Usage Restrictions Credit must be given. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.