Deep_space_exploration Space_exploration

this high-resolution image of hubble ultra deep field includes galaxies of various ages, sizes, shapes, , colors. smallest, reddest galaxies, of distant galaxies have been imaged optical telescope.

deep space exploration branch of astronomy, astronautics , space technology involved exploration of distant regions of outer space. physical exploration of space conducted both human spaceflights (deep-space astronautics) , robotic spacecraft.

some of best candidates future deep space engine technologies include anti-matter, nuclear power , beamed propulsion. latter, beamed propulsion, appears best candidate deep space exploration presently available, since uses known physics , known technology being developed other purposes.