NASA's Perseverance rover has discovered a haunting rock formation on Mars that looks unsettlingly like a skull. Dubbed "Skull Hill," the jet-black outcrop is so bizarre and out of place that even ...

Marine archaeologists have discovered that two shipwrecks in Costa Rica that were previously believed to be pirate ships are ...

Researchers diving in a submersible in the eastern Pacific realized that the landscape they had studied the day before had ...