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Dawn (spacecraft)

Dawn is a retired space probe that was launched by NASA in September 2007 with the mission of studying two of the three known protoplanets of the asteroid belt: Vesta and Ceres. In the fulfillment of that mission-the ninth in NASA's Discovery Program-Dawn entered orbit around Vesta on July 16, 2011, and completed a 14-month survey mission before leaving for Ceres in late 2012.

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Astronomical unit

An astronomical unit (AU) is a unit of length used primarily to measure distances within the solar system.

Cassini–Huygens

The Cassini–Huygens mission was a collaborative effort between NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to explore and study Saturn, its rings, and its moons.

EARTH

Earth is the third planet from the Sun in our solar system and the only known celestial body to support life.

Gamma ray

Gamma Ray is a German power metal band formed in 1989 by Kai Hansen.

Gravity assist

Gravity assist, also known as a gravity slingshot or gravitational slingshot, is a spaceflight maneuver used by spacecraft to change their velocity and trajectory by utilizing the gravitational pull of planets or other celestial bodies.

Hayabusa2

Hayabusa2 (はやぶさ2)|lead=yes}} is an asteroid sample-return mission operated by the Japanese state space agency JAXA.

Hubble Space Telescope

The Hubble Space Telescope is a space-based observatory that has revolutionized the field of astronomy since its launch in 1990.

Infrared

Infrared is a type of electromagnetic radiation, which lies beyond the visible spectrum of light.