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.

Emily Lakdawalla

While researching another story, I came across an image I don't remember ever seeing before, of a moonrise from an unexpected source.

Casey Dreier

Bobak

Bill Nye

Bill Nye and Neil deGrasse Tyson spoke to the House Science committee about the importance of space and scientific research. Bill Nye also visited with Congressman Culberson and Congressman Wolf's chief of staffabout supporting NASA's Planetary Science Program.

Emily Lakdawalla

The discoverers of Pluto's fourth and fifth moons are inviting the public to vote on (and write in candidates for) their formal names. Voting closes in two weeks.

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.

Emily Lakdawalla

In which I dive into the Magellan radar data set and come up with some images of an unusual and possibly unique solar system terrain: tessera.

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

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

Van Kane

The latest news in the United States is that a poison pill known as the Sequester is looking increasingly likely. If it happens, it will be a body blow to NASA’s planetary science program.

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.

Bruce Betts

The 45 meter asteroid 2012 DA14 will pass closer to Earth than geostationary satellites on Feb. 15, 2013. Learn about the asteroid and what to expect from the close approach.

Emily Lakdawalla

Asteroid astronomer Andy Rivkin has posted to YouTube his own awesome version of

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.

Bruce Betts

David Warmflash, who organized a science (and peace) experiment with the Planetary Society for the ill fated STS-107 Columbia mission, reflects on that tragic day ten years ago.

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

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.

Leigh Fletcher

For the first time, amateur astronomers are capturing spectacular images of Saturn's bizarre north polar hexagon.