Ancient Martian rivers were not the modest, slow-moving streams that earlier models described. A remote-sensing technique ...
Researchers have uncovered the world’s oldest known cave art—a 67,800-year-old hand stencil in Indonesia. The unusual, claw-like design hints at early symbolic thinking and possibly spiritual beliefs.
Rare hand axes from the Sakhnin Valley show Homo erectus picked fossil- and crystal-rich stones for visual appeal, hinting at ...