Pluto TOP STORY

Size, Shape, and Density of Dwarf Planet Makemake

© NASA/JPL

Artist's Impression of Makemake

A recent stellar occultation by dwarf planet Makemake provided an excellent opportunity to measure the size and shape of one of the largest objects in the Kuiper belt. The analysis of these results provided what were reported to be precise measurements of the lengths of the projected axes, the albedo, and even the density of Makemake, but these results were, in part, derived from qualitative arguments.


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Vulcan for the Win! Closing the Pluto Rocks Campaign Video in Story

© Seti Institute

Vulcan wins naming contest.

A discussion on the end of polling to name the moons of Pluto. Moderated by Alan Boyle, with scientists Franck Marchis, and Mark Showalter.

Pluto

Here's Your Chance to Name Two of Pluto's Moons

Here's Your Chance to Name Two of Pluto's Moons

It was seven months ago that Mark Showalter and a team of researchers at the SETI Institute discovered two new moon around Pluto. Named P4 and P5 the astronomers decided that the formal names should be open to public selection through a contest.


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NASA Finally Responds To Simple Questions About the New Horizons Mission to Pluto

NASA Finally Responds To Simple Questions About the New Horizons Mission to Pluto

Three months ago I asked the NASA Science Mission Directorate (SMD) some simple questions regarding possible changes to the New Horizons encounter with Pluto based on recent data indicating debris in the region.


Pluto

New Horizons Gets a New Year's Workout

New Horizons Gets a New Year's Workout

Like many of us, New Horizons is starting the new year with a workout regimen. After six months of cruising quietly through the outer solar system, NASA's Pluto-bound spacecraft came out of hibernation last weekend for three weeks of activity that include system checks, a new flight software upload and science data downloads.


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Hybrid Fluid/Kinetic Modeling of Pluto's Escaping Atmosphere

Hybrid Fluid/Kinetic Modeling of Pluto's Escaping Atmosphere

Predicting the rate of escape and thermal structure of Pluto's upper atmosphere in preparation for the New Horizons Spacecraft encounter in 2015 is important for planning and interpreting the expected measurements.


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Pluto's Seasons: New Predictions for New Horizons

Pluto's Seasons: New Predictions for New Horizons

Since the last Pluto volatile transport models were published (Hansen and Paige 1996), we have (i) new stellar occultation data from 2002 and 2006-2012 that have roughly twice the pressure as the discovery occultation of 1988, (ii) new information about the surface properties of Pluto, (iii) a spacecraft due to arrive at Pluto in 2015, and (iv) a new volatile transport model that is rapid enough to allow a large parameter-space search.


Pluto

A 3D General Circulation Model for Pluto and Triton

A 3D General Circulation Model for Pluto and Triton

We present a 3D general circulation model of Pluto and Triton's atmospheres, which uses radiative-conductive-convective forcing. In both the Pluto and Triton models, an easterly (prograde) jet is present at the equator with a maximum magnitude of 10-12 m/s and 4 m/s, respectively.


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Halfway Between Uranus and Neptune, NASA New Horizons Cruises On to Pluto

Halfway Between Uranus and Neptune, NASA New Horizons Cruises On to Pluto

On 28 November 2012 the Pluto-bound New Horizons spacecraft passed the halfway point between the orbits of Uranus and Neptune, zooming past another milepost on its historic trek to the planetary frontier.


Pluto

Dwarf Planet Makemake Lacks Atmosphere

Dwarf Planet Makemake Lacks Atmosphere

Astronomers have used three telescopes at ESO's observatories in Chile to observe the dwarf planet Makemake as it drifted in front of a distant star and blocked its light. The new observations have allowed them to check for the first time whether Makemake is surrounded by an atmosphere.


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Pluto's Moons and Possible Rings May Be Hazards: New Horizons and the Gauntlet it may Encounter in 2015

Pluto's Moons and Possible Rings May Be Hazards: New Horizons and the Gauntlet it may Encounter in 2015

NASA's New Horizons spacecraft is now almost seven years into its 9.5-year journey across the solar system to explore Pluto and its system of moons. Just over two years from now, in January 2015, New Horizons will begin encounter operations, which will culminate in a close approach to Pluto on July 14, 2015, and the first-ever exploration of a planet in the Kuiper Belt.


Pluto

Sharpest-Ever Ground-Based Images of Pluto and Charon

Sharpest-Ever Ground-Based Images of Pluto and Charon

Despite being infamously demoted from its status as a major planet, Pluto (and its largest companion Charon) recently posed as a surrogate extrasolar planetary system to help astronomers produce exceptionally high-resolution images with the Gemini North 8-meter telescope.


Pluto

NASA Hubble Discovers Fifth Moon of Pluto

NASA Hubble Discovers Fifth Moon of Pluto

A team of astronomers using NASA's Hubble Space Telescope is reporting the discovery of another moon orbiting the icy dwarf planet Pluto.


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New Horizons Aims to Put Its Stamp on History

New Horizons Aims to Put Its Stamp on History

New Horizons' flight to explore the Pluto system in July 2015 will be a historic accomplishment for the U.S. space program, for planetary science, and indeed for all humankind.


Pluto

A Traveller's Guide to the Planets - Pluto & Beyond

A Traveller's Guide to the Planets - Pluto & Beyond Video in Story

Pluto is so far away from Earth that it is a mere pinprick of light in our powerful telescopes. Locked in a gravitational dance with its largest moon Charon, this frozen outpost is simply the first discovered body in an unseen swarm of icy worlds. Learn what it would take for humans to journey to the uncharted limits of our solar neighborhood and what NASA scientists think we'll find when we get there.


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NASA New Horizons Mission to Pluto

NASA New Horizons Mission to Pluto

The PI's Perspective: A Summer's Work, Far From Home

The work is fun, no doubt there; but it never ends on this mission of exploration -- particularly in the summer, when we conduct our annual spacecraft checkouts.


Pluto

New Horizons: Passport To Pluto

New Horizons: Passport To Pluto Video in Story

Planetary exploration is a historic endeavor and a major focus of NASA. New Horizons is designed to help us understand worlds at the edge of our solar system by making the first reconnaissance of Pluto and Charon - a "double planet" and the last planet in our solar system to be visited by spacecraft. Then, as part of an extended mission, New Horizons would visit one or more objects in the Kuiper Belt region beyond Neptune.



More top stories from June.