Planetary science

New Horizons

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Image: NASA, Applied Physics Laboratory · Public domain · Wikimedia Commons

Launched: 19 Jan 200619:00:00 UTC
Active for: 20 years 9 months
Destinations: Jupiter, Pluto, Arrokoth

The first spacecraft to explore Pluto, flying past it and its moon Charon in July 2015, and later the small Kuiper belt object Arrokoth, the most distant world ever visited.

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Spacecraft

New Horizons

Flyby

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Piano-sized probe with seven instruments and a radioisotope generator, launched on the fastest trajectory of any spacecraft leaving Earth.

Launch mass: 478 kg
Dry mass: 401 kg
Size: 0.7 m × 2.7 m
Power: Radioisotope
Built by: Johns Hopkins Applied Physics Laboratory
Designator: 2006-001A

Mission details from science.nasa.gov.