Moons of Mars. The two moons of Mars are Phobos and Deimos. Both moons were discovered in 1877 by Asaph Hall and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology, accompanied their father Ares, god of war, into battle. Ares was known as Mars to the Romans.
A triangular prism is a prism composed of two triangular bases and three rectangular sides. It is a pentahedron. It is implemented in the Wolfram Language as PolyhedronData[TriangularPrism]. The triangular prism has nine distinct nets, as illustrated above.
Definition of Prism. A prism is a polyhedron consisting of two parallel, congruent faces called bases. 1  A prism is named by the shape of its base. 2  Triangular Prism: A Prism with triangular bases is a Triangular Prism.  Rectangular Prism: A Prism with rectangular bases is a Rectangular Prism.