Every galaxy has a supermassive black hole at its center, much like every egg has a yolk. But sometimes, hens lay eggs with two yolks. In a similar way, astrophysicists like us who study ...

It features a precise array of corner cube prisms that will reflect laser light directly back to its source, regardless of the angle of incidence. The same kind of instrument is already installed on ...

It features a precise array of retroreflectors (corner cube prisms) designed to reflect laser beams directly back to their source, regardless of the angle of incidence. The same instrument is ...

Teenager James Alonso won the tournament's biggest event - solving the classic 3x3 cube at speed with an average of 6.3 seconds. Speedcubing has been popular since the 1980s and the world record ...

Learn more› By Claire Wilcox and Kit Dillon After a new round of testing, we continue to recommend the updated version of Eagle Creek’s Pack-It Reveal Cube Set for most travelers. In your ...