Interplanetary spaceflight or interplanetary travel is spaceflight between planets within a single planetary system. Spaceflights become interplanetary by accelerating spacecraft beyond orbital speed,
The plains of Pluto, as seen by New Horizons after its nearly 10-year voyage
Launch concept of an interplanetary Mars sample-return mission.
Artist's rendition of an Apollo Command Module aerobraking
A Falcon Heavy rocket launches Europa Clipper into a trajectory to Jupiter; mission demands required all parts of the partially reusable launch vehicle to be expended.
The Solar System is the gravitationally bound system of the Sun and the masses that orbit it, most prominently its eight planets, of which Earth is one. The Solar System is an isolated single-star pla
Interplanetary spaceflight
…beyond, to system escape velocity, eventually performing interstellar spaceflight. Uncrewed space probes have flown to all the observed planets in the Solar System as well as to dwarf planets Pluto and Ceres, and several asteroids. Orbiters and landers return more information than fly-by missions. Crewed flights…
Diagram of the early Solar System's protoplanetary disk, out of which Earth and other Solar System bodies formed
A color enhanced photograph from the Moon of a range of components of the Solar System. The three dots at the lower left are from left to right the planets Saturn, Mars, and Mercury, and in the middle of the picture rises the Sun's corona over the dark limb of the Moon, which is from the right lit by earthshine.
Comparison of the habitable zones of the Solar System and TRAPPIST-1, an ultracool red dwarf star known to have seven terrestrial planets in stable orbits around the star.
Comparison of the habitable zones for different stellar temperatures, with a sample of known exoplanets plus the Earth, Mars, and Venus. From top to bottom are an F-type main-sequence star, a yellow dwarf (G-type main-sequence star), an orange dwarf (K-type main-sequence star), a typical red dwarf, and an ultra-cool dwarf.