Today’s post is written by Alex Parker, a research scientist at the Southwest Research Institute in Boulder, Colorado, working on NASA’s New Horizons mission.
Pluto and its moons are the most distant worlds ever visited by any of humanity’s robotic explorers, but for how much longer will that remain true? New Horizons is outbound through the Kuiper Belt, and two years ago today we discovered a smaller, more distant world that we could send it to. Likely an icy relic left behind from the era of planet formation, this world lies nearly a billion miles further from the sun than Pluto. While it will eventually be named something befitting such a world, it is currently designated 2014 MU69, and if New Horizons’ extended mission is approved by NASA, it will become the new most distant world ever explored on Jan. 1, 2019.
Illustration of objects in the outer solar system, including Pluto and 2014 MU69, and the trajectory of New Horizons (yellow). The orbits of the planets are illustrated with cyan rings, and both asteroids and Kuiper Belt objects illustrated as points. Cold Classical Kuiper Belt objects are drawn in red. Credit: Alex Parker
It took years of effort from ...