Stories, updates, insights, and original analysis from The Planetary Society.
We’re always learning more about the worlds of the outer Solar System, and even those beyond.
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.
Last week's Division for Planetary Sciences/European Planetary Science Congress meeting was chock-full of science from New Horizons at Pluto.
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?
On July 6 at Lowell Observatory in Flagstaff, Arizona, the science team convened at the place where Pluto was discovered. Ted Stryk reports from the meeting.
January 24 was the 30th anniversary of the Voyager flyby of Uranus. Uranian moons have been on my mind ever since New Horizons sent us close-up images of Charon. On the occasion of the anniversary, Ted Stryk produced latest-and-greatest versions of the Voyager views of these worlds.
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.
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.
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.
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.
Last Friday the Internet received its first post-encounter pile of goodies from the New Horizons flyby of the Pluto system.
It has been a difficult wait for new New Horizons images, but the wait is almost over; Alan Stern announced at today's Outer Planets Advisory Group meeting that image downlink will resume September 5. In the meantime, a few space fans are making the most of the small amount of data that has been returned to date.
I don't think anyone was prepared for the beauty -- or the instant scientific discoveries -- in this
The question “why is Pluto red” has been answered with a word that most people have never heard of and perhaps even fewer people can actually define—“tholins”.
So many new image goodies from the Pluto system!
The New Horizons team released one more picture from Tuesday's encounter, one of three high-resolution images from a mosaic that crossed the center of Charon's disk, and it took me a while to figure out what it reminded me of.
Today's press briefing at the Applied Physics Laboratory in California was preceded by hours of New Horizons team members cryptically dropping hints on Twitter at astonishing details in the seven images downlinked since the flyby. The images are, in fact, astonishing, as well as beautiful, surprising, and puzzling.
Now that I have a reasonable-resolution global color view of Pluto, I can drop it into one of my trademark scale image montages, to show you how it fits in with the rest of the similar-sized worlds in the solar system: the major moons and the biggest asteroids.
At a press briefing this morning, New Horizons principal investigator Alan Stern divulged some extremely preliminary first science results from the New Horizons Pluto encounter. Science results include Pluto's diameter and information on its surface composition and atmospheric escape.
In the span of a few days, Pluto and Charon have turned from spots into worlds. The latest images from New Horizons are showing Pluto and Charon to have unique faces, distinct from any other icy worlds in the solar system.