The spacecraft is following a five month hibernation, ahead of a journey deeper into one of the most mysterious regions of the Solar System
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New Horizons, which captured incredible images of Pluto in July 2015, was powered down in April to conserve energy as it travelled through the Kuiper Belt, a vast region of icy debris which encircles the Sun and planets, also known as The Third Zone. On September 11, the spacecraft will awaken for its 16 month journey to MU69, an ancient object which is thought to be one of the early building blocks of the Solar System. 

The space rock had not even been discovered when the craft launched in 2006 and the flyby will be the most distant in the history of space exploration, a billion miles beyond Pluto, and four billion miles from Earth.

Recent observations of MU69 from the Hubble Space Telescope show it is probably two ‘binary’ objects or a pair of space rocks ‘stuck-together’ bodies which are each around 12 miles across.

One artist's concept of Kuiper Belt object 2014 MU69  /  image by NASA, JHUAPL, SwRI, Alex Parker  /  source  /  license CC0

The next flyby target for NASA’s New Horizons mission. This binary concept is based on telescope observations made at Patagonia, Argentina on July 17, 2017 when MU69 passed in front of a star. New Horizons theorize that it could be a single body with a large chunk taken out of it, or two bodies that are close together or even touching.

Alan Stern, Principal Investigator for New Horizons at NASA, said:

We are very likely going to a primordial binary in the Kuiper Belt, a four-billion-year-old relic of Solar System formation and an exotic building block of the small planets of the Kuiper Belt like Pluto.

It may even be a swarm of smaller bodies left from the time when the planets in our solar system formed.  

New exploration awaits us. It promises a scientific bonanza for the flyby.

Pluto's "encounter hemisphere" viewed by New Horizons on July 13, 2015  /  image by NASA, JHUAPL, SwRI  /  source  /  license CC0

Pluto photographed by the LORRI and Ralph instruments aboard the New Horizons spacecraft.

New Horizons Flyover of Charon (is the largest of the five known natural satellites of the dwarf planet Pluto)

Charon, taken by New Horizons late on 13 July 2015  /  image by NASA, JHUAPL, SwRI  /  source  /  license CC0

This color photograph made using Adobe Photoshop CS5.

New Horizons was the fastest spacecraft to ever launch and is partly powered by nuclear energy.

When it launched in January 2006 Pluto was still a planet, but just a few months later it was downgraded to a dwarf-planet or “plutoid” and is now known officially as “asteroid number 134340”.

After studying objects in The Kuiper Belt, the spacecraft will eventually leave the Solar System, a feat only achieved by Voyager so far.

Clyde Tombaugh poses with the telescope through which he discovered the Pluto  /  image by Pluto Stowaway  /  source

The spacecraft is carrying the ashes of the scientist who discovered Pluto, Clyde Tombaugh. Tombaugh died on January 17 1997, nine years and two days before New Horizon’s launch, but one of his final requests was for his ashes to be sent into space.

Illustration of New Horizons' flyover of the Pluto-Charon system  /  image by NASA, JHU APL, SwRI, Steve Gribben  /  source  /  license CC0

NASA’s New Horizons Spacecraft Begins First Stages of Pluto Encounter. Artist’s concept of NASA’s New Horizons spacecraft as it passes Pluto and Pluto’s largest moon, Charon, in July 2015.

Source and references

  1. by Sarah Knapton - Nasa to wake up New Horizons spacecraft for voyage into mysterious Third Zone
  2. - NASA’s New Horizons Spacecraft Begins First Stages of Pluto Encounter
  3. - New Horizons
  4. by - New Horizons Flyover of Pluto
  5. by - New Horizons Flyover of Charon
  6. by Bill Keeter - NASA Video Soars over Pluto’s Majestic Mountains and Icy Plains
  7. - New Horizons

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Last updated 5 years ago on November 15, 2017 at 5:14 PM PST

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