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New Hills, Old Secrets

Bill Dunford • February 10, 2014 • 1

Exploring a set of newly named hills on Mars reveals tantalizing clues to the planet's story.

Dry Ice Snowfall at the Poles of Mars

Paul Hayne • January 16, 2014 • 1

Paul Hayne takes a look at the mysterious polar caps of Mars, and what it would be like to ski there.

Book Review: This Is Mars

Emily Lakdawalla • January 14, 2014 • 2

This is Mars is a stunning book that treats the HiRISE camera on Mars Reconnaissance Orbiter as an art photographer, exploring the variety of shapes and patterns created by wind, water, impacts, and gravity on the Martian surface.

Polar vortices across the solar system

Emily Lakdawalla • January 09, 2014 • 2

Earth's polar vortex has been in the American news all week. But we're not the only planet that has one; basically every world that has an atmosphere has a polar vortex. Here are lots of pretty pictures and animations of polar vortices.

What's up in planetary missions in 2014

Emily Lakdawalla • December 31, 2013 • 4

With the New Year upon us, what can we look forward to in 2014? For me, the main event of 2014 is that ESA's Rosetta mission finally -- finally! -- catches up to the comet it has been chasing for a decade. We will lose LADEE, gain two Mars orbiters, and launch Hayabusa2. The year begins with an amazing 24 spacecraft exploring or cruising toward various planetary destinations.

The Mists of Mars

Bill Dunford • December 09, 2013 • 3

Two grand canyons fill with fog, one on Earth and one on Mars.

Mars' chemical history: Phyllosian, Theiikian, Siderikian, oh my

Emily Lakdawalla • December 05, 2013 • 4

I'm returning to the deep dive into the literature that began with articles about lunar basins and then explored the geologic time scales of Earth, Moon, and Mars. Now it's time to catch up to the last decade of Mars research and learn what "phyllosian", "theiikian", and "siderikian" eras are.

Martian Maps: the North Pole

Bill Dunford • November 20, 2013 • 2

The polar plains, charted in unprecedented detail.

Noachian, Hesperian, and Amazonian, oh my! --Mars' Geologic Time Scale

Emily Lakdawalla • October 25, 2013 • 4

The Martian Geologic Time Scale is a lot more complicated than the Moon's.

Mars Reconnaissance Orbiter achieves imaging of comet ISON from Mars

Emily Lakdawalla • October 02, 2013 • 2

Yesterday, the much-anticipated comet ISON made its closest pass by Mars. Mars Reconnaissance Orbiter's HiRISE camera is the first to achieve a positive detection of the somewhat-fainter-than-expected comet in its photos.

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