A strange, gleaming rock on Mars has jolted planetary scientists out of their routines, not because it is large or dangerous, but because it appears to be wildly out of place. The object, sitting ...

NASA's Mars Perseverance rover has stumbled across an unusual sight: a stack of rocks on the Martian surface. How did they ...

For months, 3I/ATLAS looked like the kind of object that fuels wild theories: it changed color, grew brighter, showed a strange sunward feature, and then vanished behind the Sun while moving at 68 ...

A cone-shaped item that was photographed by a Mars rover and called into question by a scientist has now been identified by NASA. The oddly shaped object — which was photographed by NASA's Curiosity ...

A Harvard astrophysicist and NASA are locked in a public disagreement over a small, shiny object photographed on the Martian surface. The dispute hinges on whether the object is human-made debris or ...