Storm (image) Geological Society of America Caption A beautifully-formed low-pressure system swirls off the southeastern coast of Greenland, illustrating the maxim that "nature abhors a vacuum." The vacuum in this case would be a region of low atmospheric pressure. Credit Caption and image credit NASA Usage Restrictions Credit required 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.