A mysterious cylinder that washed ashore in Western Australia is debris from an Indian space launch, authorities in both countries have said, ending a flurry of speculation over the object’s origin.

A family of helicoidal hypersurfaces, denoted as 𝓧(u, v, s, t), is introduced within the context of the five-dimensional Euclidean space 𝔼⁵. Matrices for the first and second fundamental forms, the ...

A mysterious cylinder that washed ashore in Western Australia is debris from an Indian space launch, authorities in both countries have said, ending a flurry of speculation over the object's origin.