Alongside an Earthly Black Hole (IMAGE) DOE/Sandia National Laboratories Caption Sandia National Laboratories' Guillaume Loisel poses with Sandia's Z machine, where hands-on experiments contradicted a long-standing assumption about the X-ray spectra from the vicinity of black holes in space. Loisel is the lead author of a paper on the experimental results, published in Physical Review Letters. Click on the thumbnail for a high-resolution image. Credit (Photo by Randy Montoya, Sandia National Laboratories Usage Restrictions media License Licensed 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.