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Twinkling worlds in motion: New Horizons' first optical navigation images of Pluto and Charon

Posted by Emily Lakdawalla on 2014/08/07 02:31 CDT | 11 comments

What's that in the distance? A binary star? Those are two little round worlds dancing in circles, whirling around a point in space located between the two of them. It's Pluto and Charon, clearly separated by New Horizons' camera.

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New Horizons to take new photos of Pluto and Charon, beginning optical navigation campaign

Posted by Emily Lakdawalla on 2014/07/18 05:06 CDT | 6 comments

Technically, Pluto science observations don't begin for New Horizons until 2015, but the spacecraft will take a series of photos of Pluto and Charon from July 20 to 27 as it begins the first of four optical navigation campaigns.

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Will we find signs of tectonics on Pluto? And what would that mean?

Posted by Joseph O'Rourke on 2014/05/26 09:45 CDT | 1 comments

Joseph O’Rourke summarizes a recently submitted paper on tectonic activity on Pluto after the Charon-forming impact.

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Intro Astronomy 2014. Class 10: Trans Neptunian Objects including Pluto, KBOs, Comets

Posted by Bruce Betts on 2014/04/18 06:42 CDT

Explore the worlds beyond Neptune including Pluto, Kuiper Belt Objects and comets in this video of class 10 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

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2015 will be the Year of the Dwarf Planet, and you need to tell people about it!

Posted by Emily Lakdawalla on 2014/03/05 07:00 CST | 11 comments

I am very excited about 2015, more so than I have been about any year since I started working at The Planetary Society. Dawn will enter orbit at Ceres, and New Horizons, which will fly past Pluto and Charon. But if we want this kind of exploration to continue, I'm challenging you, dear readers, to tell the world why such non-planetary worlds are compelling places to go exploring.

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Predicting Pluto's moons and moondust

Posted by Emily Lakdawalla on 2014/02/19 01:39 CST | 2 comments

Why didn't we discover Pluto's moons until more than a decade after Hubble launched? Mark Showalter helps me answer this question.

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New Horizons: Updates From the Science Team Meeting, Part 1

Posted by Ted Stryk on 2014/01/23 06:15 CST | 1 comments

Ted Stryk reports on the status of the New Horizons mission from the mission's latest Science Team Meeting.

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New Horizons: Late in Cruise, and a Binary Ahoy

Posted by Alan Stern on 2013/08/24 09:16 CDT | 2 comments

New Horizons has just completed a summer of intensive activities and entered hibernation on Aug. 20. The routine parts of the activities included thorough checkouts of all our backup systems (result: they work fine!) and of all our scientific instruments (they work fine too!).

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Dwarf planet, wassup?

Posted by Emily Lakdawalla on 2013/08/16 11:24 CDT | 4 comments

In which the fifth graders of Kipp Heartwood Academy argue the competing sides in the is-Pluto-a-planet debate through the medium of rap.

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Pluto on the Eve of Exploration by New Horizons: Is there an ocean, or not?

Posted by Emily Lakdawalla on 2013/08/02 08:00 CDT | 5 comments

Does Pluto have an ocean under its ice? If it doesn't now, did it ever have one? How will we know?

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Pluto on the Eve of Exploration by New Horizons: Small moons, dust, surfaces, interiors

Posted by Emily Lakdawalla on 2013/07/24 09:04 CDT | 5 comments

My roundup from notes on the day's presentations on dust in the Pluto system and the surfaces and interiors of Pluto and Charon.

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Remembering the Pluto Campaign: A Success Story
The Society Worked for Years to Help Launch a Mission to Pluto

Posted by Casey Dreier on 2013/07/22 02:11 CDT | 3 comments

The New Horizons mission to Pluto survived many near-death encounters with cancellation during its development. The Planetary Society worked the whole time to ensure it would launch.

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New names for Pluto's little moons Kerberos and Styx; and a new moon for Neptune

Posted by Emily Lakdawalla on 2013/07/15 01:37 CDT | 4 comments

Pluto's moons, formerly known as "P4" and "P5," are now named Kerberos and Styx; I thought I'd help place them into context with a little help from Cassini. Also, Neptune now has a 14th known moon.

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DPS 2012: Double occultation by Pluto and Charon

Posted by Emily Lakdawalla on 2012/10/26 03:12 CDT | 5 comments

A few talks at last week's Division for Planetary Sciences meeting discussed observations of a double occultation -- both Pluto and Charon passing in front of the same star.

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New Horizons workshop, day 1: Chemistry & climate on Pluto & other cold places

Posted by Emily Lakdawalla on 2011/08/30 11:27 CDT

Today and tomorrow I'm attending the New Horizons Workshop on Icy Surface Processes. The first day was all about the composition of the surface and atmosphere of Pluto, Charon, Triton, and other distant places.

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The scale of our solar system

Posted by Emily Lakdawalla on 2011/05/02 11:26 CDT

Space.com has taken advantage of the infinitely scrollable nature of Web pages to produce a really cool infographic on the scales of orbital distances in the solar system.

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DPS 2010: Pluto and Charon opposition surges, Nix and Hydra masses, Pluto and Eris compositions

Posted by Emily Lakdawalla on 2010/10/25 11:18 CDT

An awful lot of the talks in the Pluto session on Tuesday morning, October 5, at the Division of Planetary Sciences meeting spent more time focusing on how bad weather conditions were during the astronomers' attempts to view Pluto as it occulted background stars than they did on any measurements or science that came out from the data.

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Yet another active world: Charon

Posted by Emily Lakdawalla on 2007/07/18 05:14 CDT

I've just posted a news story on a recently published paper that suggests that Pluto's moon Charon may have active ice volcanoes.

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Bedtime for New Horizons

Posted by Emily Lakdawalla on 2007/06/28 06:07 CDT

According to the mission website, the New Horizons spacecraft has drifted off to sleep, entering its "hibernation" mode for the first time.

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Speaking of Pluto...

Posted by Emily Lakdawalla on 2006/02/20 07:31 CST

I just posted today's installment of Planetary Radio, in which Mat Kaplan gets an update on New Horizons from Principal Investigator Alan Stern-- check it out!

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