New Horizons is being sent into the interstellar medium.
More and more deep space missions are orbiters or landers now, so there are fewer flyby missions that can double as interstellar medium missions like Voyager/Pioneer, but New Horizons is one of them.
More and more deep space missions are orbiters or landers now, so there are fewer flyby missions that can double as interstellar medium missions like Voyager/Pioneer, but New Horizons is one of them.