Researchers have presented compelling evidence challenging the long-held theory that glaciers transported the Stonehenge stones. Utilizing mineral fingerprinting, scientists determined the origin of the Altar Stone and analyzed zircon crystals. They found no mineral signature from Pleistocene-era sediment, suggesting that humans, not glaciers, were responsible for moving the massive stones to their current location.

This new research, published in *Communications Earth & Environment*, builds upon previous studies that pinpointed the quarries where the Stonehenge stones originated. The study analyzed stones from the Orkney region in Scotland. This helps solve the enduring mystery of how ancient humans managed to transport the heavy bluestones, a feat that has captivated archaeologists and the public for centuries.

In related news, Princeton University scientists are studying grasshoppers to develop new robotic wings. They 3D-printed model wings and tested them to understand how wing shape impacts flight. They found smooth wings lead to efficient gliding. This research could enable multimodal locomotion for miniature robots with improved flight times.

These findings suggest that, in the future, we may see more efficient small-scale robotics and a clearer understanding of how ancient societies achieved remarkable feats. Further research into the methods used to transport the Stonehenge stones is anticipated, offering a deeper insight into human ingenuity and ancient engineering practices.