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How we would explore Uranus or Neptune

Van Kane • July 06, 2017

One fact dominates the planning for any mission to Uranus or Neptune: They lie far from the sun. A newly released NASA report looks at how we can explore these icy giants.

Revisiting the ice giants: NASA study considers Uranus and Neptune missions

Jason Davis • June 21, 2017

Only one spacecraft has ever visited Uranus and Neptune: Voyager 2, in the late 1980s. A new NASA report explores the reasons to go back, and what type of mission might take us there.

Some beautiful new (old) views of Neptune and Triton

Emily Lakdawalla • September 20, 2016

Beautiful new amateur work with 27-year-old Voyager data.

Checking in on Uranus and Neptune, September 2015 edition

Emily Lakdawalla • September 22, 2015

There are no spacecraft at Uranus or Neptune, and there haven't been for 30 and 25 years, respectively. So we depend on Earth-based astronomers to monitor them, including Damian Peach.

The not-planets

Emily Lakdawalla • July 14, 2015

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.

Two Months from Pluto!

Paul Schenk • May 19, 2015

Two months. Eight and half weeks. 58 days. It's a concept almost too difficult to grasp: we are on Pluto's doorstep.

New Horizons: Updates From the April 2014 Science Team Meeting

Simon Porter • May 07, 2014

New Horizons team member Simon Porter reports on the state of the mission and Pluto system science from the recent science team meeting at the Applied Physics Laboratory.

Intro Astronomy Class 9: Titan, Uranus and Neptune Systems

Bruce Betts • April 11, 2014

Examine Saturn's moon Titan and explore the Uranian and Neptunian systems in this video of class 9 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

Intro Astronomy Class 1: Tour of the Solar System

Bruce Betts • February 11, 2014

Take a tour of the Solar System in the video of class 1 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

Through a Glass, Darkly

Bill Dunford • January 13, 2014

When sent from deep space, even imperfect images can inform and amaze.

Europe Will Select Its Next Major Science Mission in November

Van Kane • September 25, 2013

The European Space Agency will announce two major science missions this November, one of which is likely to be devoted to solar system exploration.

Scale comparisons of the solar system's major moons

Emily Lakdawalla • July 10, 2013

A few presentation slides with pretty pictures, sized to scale, of the large moons of the solar system.

Planetary Society Weekly Hangout: The Ice Giants, with Heidi Hammel

Emily Lakdawalla • April 11, 2013

My guest this was Planetary Society Board vice president Heidi Hammel. We discussed two planets near and dear to our hearts, Neptune and Uranus. What's new on these icy worlds since Voyager 2 passed by, and what are the prospects for their future exploration?

Pretty picture: Neptune and Triton

Emily Lakdawalla • February 01, 2013

On a lonely evening, what is one to do but to dip into archival space image data and surface with a gorgeous photo of a crescent Neptune and Triton?

A Distant View of Triton

Ted Stryk • September 26, 2011

Ted Stryk reminisces on how he was turned on to astronomy.

Scale solar system presentation slide, a provisional version for you to review

Emily Lakdawalla • September 15, 2011

I'm preparing a talk for the Pacific Astronomy and Telescope Show here in Pasadena on Sunday afternoon at 1:45. I have spent the morning putting together a slide that I have long wanted to have for presentations.

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

Emily Lakdawalla • August 30, 2011

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.

Mercury: a moon-scale body

Emily Lakdawalla • March 17, 2011

As I wait for the MESSENGER Mercury Orbit Insertion webcast to start, I thought I'd fiddle with some images to point out that Mercury is a bridge between the scales of planets and the scales of moons.

Door 8 in the 2010 advent calendar

Emily Lakdawalla • December 08, 2010

Time to open the eighth door in the advent calendar. Where in the solar system is this nearly flat plain?

Neptune from two slightly different perspectives

Emily Lakdawalla • September 06, 2010

Coincidentally, two new images of Neptune were posted today, from two very different sources.

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