Pushing the limits of structured light, applied physicists report a new type of optical vortex beam that not only twists as it travels but also changes in different parts at different rates to create ...

spinning in the atmosphere and reflecting the sunlight, causing it to appear as a spiral in the sky." The flight, dubbed NROL-69, launched shortly before 2 p.m. from Cape Canaveral Space Force ...

The galaxy that appears by happenstance at the tip of HH 49/50 is a much more distant, face-on spiral galaxy ... 49/50 will move outwards and eventually appear to cover up the distant galaxy.

“If someone loves views of nature and wants to be able to sit in ... accessible by an unusual spiral staircase. Priced at $750,000, one side of the home is anchored by a heated garage, and ...