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Stories, updates, insights, and original analysis from The Planetary Society.

Jupiter dazzles and Neptune beckons

Feast your eyes on these images from space, catch up on the latest in exploration news, and get the lowdown on what’s up in the night sky.

The Next 10 Years

Six scientists share the major planetary science discoveries of the past decade, and the questions that will drive the next 10 years of solar system exploration.

China Considers Voyager-like Mission to Interstellar Space

The mission includes a flyby of Neptune and measurements of the heliosphere, the electrically charged gas bubble surrounding our solar system

Not a Heart of Ice

Mark Marley explains what planetary scientists mean when they say the word

The Realm of the Ice Giants

Imagine 2 icy worlds far from the Sun. Their serene, blue atmospheres. Huge, ominous-looking storms. Tantalizing glimpses of moons with exotic, icy terrains. Delicate sets of encircling rings.

The subtle color difference between Uranus and Neptune

The color of Uranus and Neptune is similar, but not identical. Uranus appears greener and Neptune bluer.

Voyager 40th anniversary: Revisiting the Voyagers' planetary views

Björn Jónsson argues that even now, 40 years after Voyager 1 and 2 were launched, a lot of the data they returned is still of high interest.

Voyager 40th anniversary: The transformation of the solar system

The Voyager missions transformed most of the large worlds of the solar system from points of light into places to be explored.

How we would explore Uranus or Neptune

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

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

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

Oppositions, conjunctions, seasons, and ring plane crossings of the giant planets

When are the solstices and equinoxes on the giant planets, and when are they best positioned for view from Earth? I ask these questions a lot as I write about Earth photos of giant planets, and I finally decided to gather the answers to those questions in a single post.

Approaching Neptune

Image processing enthusiast Ian Regan is working on a cool new version of the Voyager 2 Neptune approach movie.

Checking in on Uranus and Neptune, September 2015 edition

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.

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

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.

The not-planets

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!

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

A Sky Full of Stars

In pictures of the planets, the stars aren't usually visible. But when they do appear, they're spectacular.

Flawed Beauties

More examples of imperfect--but tantalizing--images from deep space.

Best-ever Neptune mosaics for the 25th anniversary of Voyager 2's flyby

In honor of the 25th anniversary of the Voyager 2 flyby of Neptune, image magician Björn Jónsson has produced two new global mosaics of the distant ice giant, the highest-resolution ever made.

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