Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty

Blog Archive


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

Posted by Emily Lakdawalla on 2016/10/25 07:17 CDT

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

Read More »

DPS/EPSC update: 2007 OR10 has a moon!

Posted by Emily Lakdawalla on 2016/10/19 11:46 CDT | 2 comments

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.

Read More »

Rapidly Rotating Regular Satellites and Tides

Posted by Darin Ragozzine on 2016/10/17 02:29 CDT | 2 comments

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?

Read More »

A Moon for Makemake

Posted by Alex Parker on 2016/05/02 10:54 CDT | 2 comments

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.

Read More »

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

Posted by Emily Lakdawalla on 2016/03/08 11:34 CST | 26 comments

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

Read More »

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

Posted by Emily Lakdawalla on 2015/12/21 05:38 CST | 7 comments

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.

Read More »

The round worlds in the solar system: An updated graphic

Posted by Emily Lakdawalla on 2015/11/02 04:06 CST | 9 comments

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.

Read More »

Charon in 3D

Posted by Emily Lakdawalla on 2015/10/13 06:40 CDT | 3 comments

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.

Read More »

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

Posted by Emily Lakdawalla on 2015/10/02 06:05 CDT | 15 comments

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.

Read More »

Lose yourself in this high-resolution portrait of Pluto

Posted by Emily Lakdawalla on 2015/09/24 04:45 CDT | 13 comments

Enlarge this image to its full 8000-pixel-square glory and lose yourself in it.

Read More »

Spectacular New Horizons photo of Pluto's hazes and mountains: How it was made

Posted by Emily Lakdawalla on 2015/09/17 04:04 CDT | 11 comments

Today, New Horizons released a stunning new image of Pluto's backlit mountains and hazes. I explain how the image was taken with its Ralph Multispectral Visible Imaging Camera.

Read More »

Pretty Pictures: Downlink of the Full New Horizons Data Set Has Begun

Posted by Emily Lakdawalla on 2015/09/10 04:52 CDT | 7 comments

New Horizons has begun the long process of downlinking all the images it acquired during its July Pluto flyby.

Read More »

Three space fan visualizations of New Horizons' Pluto-Charon flyby

Posted by Emily Lakdawalla on 2015/08/25 01:42 CDT | 4 comments

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.

Read More »

Looking back at Pluto

Posted by Emily Lakdawalla on 2015/07/24 07:12 CDT | 17 comments

I don't think anyone was prepared for the beauty -- or the instant scientific discoveries -- in this "lookback" image of Pluto, captured by New Horizons shortly after it flew by.

Read More »

New Horizons encounter plus one week: Weird and wonderful images from the Pluto system

Posted by Emily Lakdawalla on 2015/07/21 06:39 CDT | 23 comments

So many new image goodies from the Pluto system!

Read More »

Latest New Horizons picture of Charon: oddly familiar

Posted by Emily Lakdawalla on 2015/07/16 02:45 CDT | 14 comments

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.

Read More »

First look at New Horizons' Pluto and Charon images: "baffling in a very interesting and wonderful way"

Posted by Emily Lakdawalla on 2015/07/15 04:42 CDT | 33 comments

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.

Read More »

Pluto minus one day: Very first New Horizons Pluto encounter science results

Posted by Emily Lakdawalla on 2015/07/13 12:16 CDT | 15 comments

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.

Read More »

Zooming in to Pluto and Charon

Posted by Emily Lakdawalla on 2015/07/12 07:31 CDT | 9 comments

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.

Read More »

New Horizons "back in action" after safe mode event, ready to resume encounter science

Posted by Emily Lakdawalla on 2015/07/06 04:12 CDT | 10 comments

NASA held a press briefing today to explain the nature and cause of the spacecraft anomaly that halted science on New Horizons for four days as it was on its terminal approach to Pluto. As of the moment that I write this post, New Horizons is not yet performing science observations, but it will resume them tomorrow, July 7.

Read More »

Items 1 - 20 of 83  12345Next
Facebook Twitter Email RSS AddThis

Essential Advocacy

Our Advocacy Program provides each Society member a voice in the process.

Funding is critical. The more we have, the more effective we can be, translating into more missions, more science, and more exploration.


Featured Images

Color map of Pluto
Comparison of Schiaparelli and Opportunity landing locations
Mars Reconnaissance Orbiter Context Camera image of Curiosity landing site
Schiaparelli landing site, after landing attempt
More Images

Featured Video

The Planetary Post - Star Trek 50th Anniversary

Watch Now

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join The Planetary Society

Let’s explore the cosmos together!

Become a Member

Connect With Us

Facebook, Twitter, YouTube and more…
Continue the conversation with our online community!