Researchers recently posted findings on the preprint server arXiv, drawing global interest and some reservations about what it all means. Data from the now-collapsed Arecibo Observatory continues to ...

This image of an Aggressors F-16 provides an opportunity to see heat distortion “at work” and compare it to shock wave distortion. Here’s another stunner. The image in this post was taken on Dec. 20, ...

The visible distortion around the belly of the aircraft (left side of the photo) is caused by the shock waves that distort light as if it was entering a new medium. As we already explained in the past ...