Articles

Larry Crumpler

We have been seeing lots of small light-colored veins crossing through the outcrops here on Matijevic Hill, and we have tried to get a handle on the composition of these veins by doing multiple offsets with the APXS. It appears that the small veins are calcium sulfate, as best we can determine.

Casey Dreier

Bobak

Bill Dunford

Why spend effort and scarce resources on space exploration when we have so many problems here at home? Turns out, there are some pretty good reasons.

Emily Lakdawalla

With the Landsat Data Continuity Mission scheduled to launch on Monday, there's been a lot of Tweeting about Landsat, and through one such Tweet I learned about a resource that I hadn't known existed before: the LandsatLook Viewer. This is a graphical interface to more than a decade worth of Landsat data, a tremendous resource for anyone interested in Earth's changing surface, natural or manmade.

A.J.S. Rayl

With its robot nose to the Martian grindstone, Opportunity completed its ninth year of working on Mars in January, making another significant science discovery in tiny white veins on Matijevic Hill as the Mars Exploration Rover (MER) mission rolled on into Year 10.

Emily Lakdawalla

It's taken me a year to face the emotionally draining task of reading and writing about Galileo's cruise phase as chronicled in the mission's newsletters.

Emily Lakdawalla

Deep Impact has made the first space-based observations of comet ISON.

Emily Lakdawalla

Curiosity is inching her way through her first use of the drill on a Martian rock. She paused in the proceedings to capture a second Martian

Bill Dunford

Noctis Labyrinthus on Mars is an amazing place for an imagined day hike, courtesy of images from Mars Express.

Emily Lakdawalla

Remembering Rick Husband, William McCool, Michael Anderson, Kalpana Chawla, David Brown, Laurel Clark, and Ilan Ramon on the tenth anniversary of the loss of the space shuttle Columbia.

Emily Lakdawalla

On a lonely evening, what is one to do but to dip into archival space image data and surface with a gorgeous photo of a crescent Neptune and Triton?

Emily Lakdawalla

We welcomed Sarah Noble to our weekly Google+ Hangout. Sarah is a lunar geologist and a civil servant working in the Research & Analysis program at NASA Headquarters, and has recently been named Program Scientist for the LADEE lunar mission.

Emily Lakdawalla

A conversation on Twitter today reminded me of this photo, which is one of my all-time favorite space images: the view from Rosetta during its Mars flyby.

Marc Rayman

As Dawn continues thrusting toward Ceres, Marc takes a look back at the intrepid spacecraft's discoveries.

Emily Lakdawalla

Time for my quarterly foray into the Cassini archival science data! The very first image I downloaded from the January 1, 2013 data release presented an interesting challenge to my image processing skill. I'll show you the pretty picture of Enceladus and then explain how I processed it.

Casey Dreier

The Planetary Society remains committed to a balanced program of solar system exploration, with Mars, outer planets, and small missions all playing an important part.

Emily Lakdawalla

They're getting closer and closer to drilling. Curiosity now seems to be positioned in the spot where they plan to be when they execute that long-awaited first drill.

Bill Dunford

Just like on Earth, clouds and storms often ripple through the Martian atmosphere. You can even check the daily weather report.

Alex Parker

Recently, several of the Kuiper Belt Objects our team has discovered while searching for New Horizons post-Pluto flyby candidates have been submitted to the Minor Planet Center and their orbital information is now in the public domain.

Emily Lakdawalla

I had one of those