- A Tour of the Triangulum Galaxy [4K] (youtube.com)
The Milky Way is surrounded by more than 50 near neighbour galaxies that make up the Local Group. The two largest galaxies are us and Andromeda, but we also have an often-overlooked third large galaxy in our neighbourhood- the Triangulum Galaxy. This galaxy is like its own mini-Milky Way, containing stars, clouds, clusters, supernova remnants, and satellites. These are the checkpoints in the Triangulum Galaxy which make up our tour today.
- Cube (Wikipedia)
In geometry, a cube or regular hexahedron is a three-dimensional solid object bounded by six congruent square faces, a type of polyhedron. It has twelve congruent edges and eight vertices. It is a type of parallelepiped, with pairs of parallel opposite faces, and more specifically a rhombohedron, with congruent edges, and a rectangular cuboid, with right angles between pairs of intersecting faces and pairs of intersecting edges. It is an example of many classes of polyhedra: Platonic solid, regular polyhedron, parallelohedron, zonohedron, and plesiohedron. The dual polyhedron of a cube is the regular octahedron.
