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

Mastcam-Z Flight Hardware!

After a more-than-four-year adventure, the flight Mars 2020 rover Mastcam-Z cameras have been fully assembled!

One Ocean World Among Many

I'm absolutely floored when I stop to think that our beautiful blue ocean is only one of perhaps a half dozen or more oceans on other worlds in our solar system, and only one of probably millions (or more) oceans on other Earth-like planets in our galaxy. Oceans abound!

Curiosity's landing site named for Ray Bradbury

Ray Bradbury explored Mars, and the future of humanity, through words and ideas--vehicles of the imagination. He was a visionary author and, through his writings and lectures, was a direct or indirect mentor to so many of us involved with designing, building, and operating the actual space vehicles of today. I think it is so fitting, then, that the MSL team has memorialized Ray's contributions to the exploration of the planets -- and especially Mars -- by naming Curiosity's landing site in his honor.

Not Necessarily Your Last Venus Transit!

Unless you are lucky and healthy enough to live for another 105 years, tomorrow will be your last chance to see a Venus transit from the surface of the Earth. But this need not be the last transit of Venus that you will ever see.

A Turning Point at Mars

Today, NASA's highly-successful robotic solar system exploration program, and the Mars exploration program in particular, is on the brink of a major turning point.

Space, Available

Recent deep funding cuts by the Administration and Congress for NASA's space exploration programs are turning the final frontier into an ever-receding dream.

A Tale of Two Martians

It's the best of times for Mars exploration because we've got three orbiters and a rover studying the Red Planet. It's also the worst of times for my Russian, European, and Chinese colleagues who were part of the Phobos-Grunt mission.

Fly me to the Moon...

Jim Bell describes his proposal to join the Lunar Reconnaissance Orbiter Cameras science team.

Sands on Earth, Sands on Mars

One of the ways that planetary scientists try to understand the origin and evolution of landforms on other planets is by studying similar kinds of landforms or

Space is vast. There's a lot of exploring to do.

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