NASA spacecraft has next mission after Pluto

29 August 2015 - 11:01 By KENNETH CHANG

The next destination for NASA’s Pluto probe is to be a much smaller ice ball in the outer solar system, the space agency announced Friday. The New Horizons spacecraft, which captured a cornucopia of photographs and data during its Pluto flyby last month, is to make a similar examination of a small, icy body known as 2014 MU69 in 2019 if NASA approves an extension to the mission.While the vistas of this object would not be as breathtaking and varied as those of Pluto, the visit would provide a close-up look at another piece of the frigid debris beyond Neptune, part of what is known as the Kuiper belt. The debris, left over from the earliest days of the solar system, gives insight into how planets formed.Pluto is about 3 billion miles from the sun; 2014 MU69 is almost 1 billion miles beyond Pluto.NASA has already examined smaller icy objects like comets, some of which originate in the Kuiper belt, and Pluto, the largest Kuiper belt object. The flyby of 2014 MU69 would fill in the picture for an intermediate-size Kuiper belt object.“We want to connect the dots,” said S. Alan Stern, New Horizons’ principal investigator.Stern had always hoped to follow up the Pluto visit with another Kuiper belt object. A concerted search using the Hubble Space Telescope turned up two viable candidates. This week, mission scientists met and decided on 2014 MU69, which is slightly smaller but easier to reach.“It’s better science and lower risk,” Stern said.The New Horizons spacecraft is to adjust course through a series of four thruster firings in late October and early November. New Horizons would also make more distant measurements of 20 other Kuiper belt objects en route to 2014 MU69.Although the scientists will search for somewhere to go after that, “there are low odds that we would find something within the remaining fuel,” Stern said.--2015 New York Times News Service..

There’s never been a more important time to support independent media.

From World War 1 to present-day cosmopolitan South Africa and beyond, the Sunday Times has been a pillar in covering the stories that matter to you.

For just R80 you can become a premium member (digital access) and support a publication that has played an important political and social role in South Africa for over a century of Sundays. You can cancel anytime.

Already subscribed? Sign in below.



Questions or problems? Email helpdesk@timeslive.co.za or call 0860 52 52 00.