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The Mists of Mars

Bill Dunford • December 09, 2013 • 3

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

Science Against the Storm

Bill Dunford • November 11, 2013

In the face of disaster, the search for answers and ways to help continues, on the ground and in space.

DPS 2013: Tidbits from Titan

Emily Lakdawalla • October 09, 2013 • 8

I attended a few talks at the Division for Planetary Sciences meeting today that concerned Titan's origin and interesting surface, and then one in the afternoon about the atmosphere.

Mars' valley networks tell us of a dry, then wet, then dry Mars

Emily Lakdawalla • September 10, 2013 • 1

Was there rainfall on Mars? Recent work mapping valley networks suggests there probably was -- but only for about 200 million years. What does this mean for life, and the Curiosity mission?

Pluto's atmosphere does not collapse

Emily Lakdawalla • September 06, 2013 • 2

Just four months ago I posted about a paper recently published by Leslie Young and coauthors that described three possible scenarios for Pluto's atmosphere. Yesterday, Cathy Olkin, Leslie Young, and coauthors posted a preprint on arXiv that says that only one of those scenarios can be true. And it's a surprising one. The title of their paper says it all: "Pluto's atmosphere does not collapse."

Caution: Spacecraft Under Construction

Mat Kaplan • August 20, 2013 • 1

Join Emily Lakdawalla and Mat Kaplan inside JPL's High Bay 1, where two Earth-revealing missions are being readied for launch.

Beautiful science by Elektro-L

Vitaliy Egorov • August 08, 2013 • 7

Six months ago, I wrote about the Russian weather satellite Elektro-L, which has more than two years of successful experience in the geostationary orbit. Then I promised that I would be here to share the materials that we collected. I think it's time to deliver on the promise.

The Ancient Snows of Mars on Planetary Radio

Mat Kaplan • August 06, 2013

Kat Scanlon tells Planetary Radio that Hawaii and Mars have more in common than you might think.

Happy 32! Happy New Mars Year!

Emily Lakdawalla • July 31, 2013 • 4

They're too far apart to have a party, but today Curiosity and Opportunity could have rung in the New Mars Year. Today Mars reached a solar longitude of zero degrees and the Sun crossed Mars' equator, heralding the arrival of spring in the northern hemisphere and autumn in the southern hemisphere.

Tides of light and ice: Water and rock made from snowmelt on Mars

Emily Lakdawalla • April 17, 2013 • 4

A recently published paper proposes that much of the sedimentary rock on Mars formed during rare, brief periods of very slight wetness under melting snow.

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