Work is already underway to prepare for the arrival of Sapphire Canyon, the most intriguing rock collected on Mars—though it may not matter in the end.

By studying the leopard-like spots on rocks from Earth and Mars now, scientists will be ready to analyze returned space ...

A curious red Martian rock nicknamed Sapphire Canyon has scientists excited, as its spotted appearance hints at possible organic origins. On Earth, researchers tested a powerful laser technique, ...