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Our journalists and guest bloggers bring you stunning imagery and the space stories that matter most.

Planetary Society-funded telescopes help find ring around Haumea, a distant dwarf planet

Jason Davis • October 11, 2017 • 3

Haumea has a ring! Two telescopes used in the discovery—one in Slovenia, and one in Italy—received funding from The Planetary Society's Shoemaker Near Earth Object (NEO) Grant program, which helps amateur astronomers find, track and characterize near-Earth asteroids.

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.

Rapidly Rotating Regular Satellites and Tides

Darin Ragozzine • October 17, 2016 • 2

Pluto’s small moons have unusual rotation rates and states. Now we know a moon of another dwarf planet does as well. Is there a connection?

A Moon for Makemake

Alex Parker • May 02, 2016 • 3

The solar system beyond Neptune is full of worlds hosting moons. Now we know that the dwarf planet Makemake has one of its very own.

"Planet Nine" update: Possible resonances beyond the Kuiper belt?

Emily Lakdawalla • March 08, 2016 • 27

A new paper by Renu Malhotra proposes that an undiscovered distant planet could have organized extremely distant Kuiper belt objects into orbital resonances.

Pluto updates from AGU and DPS: Pretty pictures from a confusing world

Emily Lakdawalla • December 21, 2015 • 7

Pluto is reluctant to give up its secrets. Last week at the American Geophysical Union meeting I attended sessions featuring results from the New Horizons mission, and most of the presentations could be summed up thusly: the data sets are terrific, but there are still a lot of Pluto features that have scientists scratching their heads.

The round worlds in the solar system: An updated graphic

Emily Lakdawalla • November 02, 2015 • 9

I have a newly updated scale comparison graphic to share: all the round worlds in the solar system smaller than 10,000 kilometers in diameter, now with added Pluto, Charon, and Ceres.

Charon in 3D

Emily Lakdawalla • October 13, 2015 • 3

Last week, the pile of New Horizons LORRI camera raw image releases included nine frames from a high-resolution mosaic on Charon. Together with the color MVIC view, they make a 3D global photo of Pluto's moon. Other recently released goodies include a global backlit color image of Pluto and the first image that resolves the tiny moon Styx.

New Horizons releases new color pictures of Charon, high-resolution lookback photo of Pluto

Emily Lakdawalla • October 02, 2015 • 15

Now that New Horizons is regularly sending back data, the mission is settling into a routine of releasing a set of captioned images on Thursdays, followed by raw LORRI images on Friday. The Thursday releases give us the opportunity to see lovely color data from the spacecraft's Ralph MVIC instrument. This week, the newly available color data set covered Charon.

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