(explorer spacecraft sent to asteroids Vesta and Ceres)
Dawn was a NASA space mission launched in 2007
to observe the asteroids, Vesta and Ceres,
orbiting both of them.
Its interplanetary flight made use of an ion engine
and it began orbiting Vesta in 2011 and Ceres in 2015,
the mission terminated in 2018.
Referenced by pages:
Agenzia Spaziale Italiana (ASI)