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Looking Back at MU69

Emily Lakdawalla • February 08, 2019 • 1

A crescent view of MU69 reveals its bizarre shape. Let's look at lots of other fun-shaped space crescents.

A few new images of MU69

Emily Lakdawalla • January 15, 2019 • 4

New Horizons is back in action after going quiet for a period of solar conjunction following the 1 January flyby of 2014 MU69 (informally nicknamed "Ultima Thule"). The spacecraft is returning new data, as exemplified by these images.

MU69 appears as a bi-lobed baby comet in latest New Horizons images

Emily Lakdawalla • January 02, 2019 • 8

The latest images downlinked from New Horizons show MU69 to be a textbook example of a contact binary. How do contact binaries form? Updated with images released on 3 January.

Happy New Year! The New Horizons flyby was successful!

Emily Lakdawalla • January 01, 2019 • 2

New Horizons has "phoned home" as expected, 4 hours after its closest approach to 2014 MU69. Its brief transmission contained no science data, but gave the scientists welcome news: New Horizons has successfully pulled off the most distant flyby ever.

New Horizons fast approaching 2014 MU69

Emily Lakdawalla • December 27, 2018 • 3

Unaffected by the shutdown of the U.S. government, New Horizons is still on course for its New Year’s encounter with 2014 MU69 (nicknamed “Ultima Thule”). This post collects the latest images from New Horizons' approach to the tiny Kuiper belt object and will be updated regularly.

Some big moons in the Kuiper belt

Emily Lakdawalla • January 25, 2018 • 3

In a new preprint, Mike Brown and Bryan Butler show evidence that two Kuiper belt moons are even bigger than we used to think. They are Eris' moon Dysnomia, and Orcus' moon Vanth.

New Horizons prepares for encounter with 2014 MU69

Emily Lakdawalla • January 24, 2018 • 7

Throughout 2018, New Horizons will cruise toward its January 1 encounter with 2014 MU69. Preparations for the flyby are nearly complete.

In total eclipse of a star, New Horizons' future flyby target makes its presence known

Emily Lakdawalla • July 19, 2017

The team reported two weeks ago that the first attempts at observing 2014 MU69 were unsuccessful. But in their third try, on July 17, astronomers in Argentina saw the telltale sign of MU69's presence: a stellar wink.

DPS/EPSC update on New Horizons at the Pluto system and beyond

Emily Lakdawalla • October 25, 2016 • 4

Last week's Division for Planetary Sciences/European Planetary Science Congress meeting was chock-full of science from New Horizons at Pluto.

DPS/EPSC update: 2007 OR10 has a moon!

Emily Lakdawalla • October 19, 2016 • 5

The third-largest object known beyond Neptune, 2007 OR10, has a moon. The discovery was reported in a poster by Gábor Marton, Csaba Kiss, and Thomas Mueller at the joint meeting of the European Planetary Science Congress and the Division for Planetary Sciences of the American Astronomical Society (DPS/EPSC) on Monday.

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