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Our journalists and guest bloggers bring you stunning imagery and the space stories that matter most.

Watch Planetary Radio LIVE on Saturday!

Mat Kaplan • December 15, 2012 • 1

Watch the live show at 2pm Pacific on Saturday, December 15 to see Bill Nye, Emily Lakdawalla and the leaders of the Mars Science Laboratory rover mission.

More than you probably wanted to know about Curiosity's SAM instrument

Emily Lakdawalla • November 30, 2012 • 26

With all the hoopla surrounding the unknown results of the first analysis of a soil sample by Curiosity's Sample Analysis at Mars (SAM) instrument, I thought an explainer would be useful. What is SAM, what is it designed to measure, and what is the nature of its results? Here you go.

VIDEOS: Nye & Teens in Space as Curiosity Lands in Hi-Def!

Mat Kaplan • September 19, 2012 • 2

Losing your enthusiasm for space exploration and science Watch these new and terrific videos for an exhilarating shot of Vitamin S.

Thursday: Watch Bill Nye Host YouTube SpaceLab Webcast

Mat Kaplan • September 11, 2012

The Planetary Society CEO goes to London to MC a live conversation with ISS astronaut Sunita Williams and the kids who've had their experiments conducted in orbit.

Optical SETI Gets a Major Upgrade

Bruce Betts • August 30, 2012 • 5

The Planetary Society Optical SETI Telescope in Harvard, Massachusetts just got a major upgrade of its electronics.

Full Free Intro Astronomy Class Now Online

Bruce Betts • May 22, 2012 • 1

Bruce Betts' complete CSUDH Intro Astronomy and Planetary Science class is now available online. Find out how to access it, and go behind the scenes.

Earth’s toughest life could survive on Mars

Mike Malaska • May 15, 2012 • 7

The surface of Mars is a tough place to survive, but researchers at the German Aerospace Center (DLR) found some lichens and cyanobacteria tough enough to handle those conditions.

Is there life on Venus? Not in reprocessed Venera-13 images.

Emily Lakdawalla • January 23, 2012

At the end of last week, a rather sensational article appeared in both the Russian- and English-language sites of the Russian news agency, RIA Novosti. "Life Spotted on Venus - Russian Scientist," ran the English headline; a Google translation of the Russian one goes: "The Soviet probes may have photographed creatures on Venus."

NOVA: Finding Life Beyond Earth airs tonight, with lots of planetary stars

Emily Lakdawalla • October 19, 2011

Programming note: tonight, public television stations will be airing a new, two-hour NOVA documentary, "Finding Life Beyond Earth."

Origins 2011 conference, part 2

Frank Trixler • July 27, 2011

In this, my second blog on Origins 2011 in Montpellier, France, a conference dedicated to the interdisciplinary research on the origins of life, I aim to provide my impression of the second half of the conference.

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