Articles

Karl Battams

You thought you were rid of us...but we're back! Following the spectacular and, quite frankly unprecedented, success of the Comet ISON Observing Campaign, we are launching a similar venture for another unique cometary encounter that's happening this year. In October 2014, comet C/2013 A1 (Siding Spring) will pass extremely close to Mars.

Bill Dunford

Striking terrain discovered by the MESSENGER probe.

Casey Dreier

Cosmos stumbles with an episode that is plodding, scattered, and more than a little preachy. This episode will only persist in my memory as a shadow of what could have been.

Emily Lakdawalla

The Sun has set for a second time at Chang'e 3's landing site on the Moon. The lander is operating normally and shut down to sleep as expected, but the rover is not responding properly to Earth command so could not prepare properly for the oncoming lunar night, and likely will not survive it.

Casey Dreier

The Planetary Society released an official statement today recognizing the unprecedented achievement of maintaining an operating rover on the surface of Mars for a decade.

Emily Lakdawalla

Over the last few days, Curiosity made steady driving progress to the southwest. For several of those days, an intriguing feature has appeared on the horizon in her images. UPDATE: The Curiosity team has now decided to drive the rover toward the feature, which is now named

Ted Stryk

Ted Stryk reports on the status of the New Horizons mission from the mission's latest Science Team Meeting. Updates include the status of the Kuiper Belt target search and the use of ALMA to refine Pluto's ephemeris.

Casey Dreier

Lockheed, the prime contract on the now-defunct Advanced Stirling Radioisotope Generator program, is closing out the project and transferring its hardware to NASA's Glenn Research Center. NASA expects to save about $55 million per year.

Ted Stryk

Ted Stryk reports on the status of the New Horizons mission from the mission's latest Science Team Meeting.

Ken Herkenhoff

In the last month, Curiosity put 222 meters on the odometer in 12 short drives, while regularly assessing the wheels for damage. The rover performed touch-and-go analyses of rocks including Oneida and Kodak, and also took some ChemCam RMI mosaics of rocks near the base of Mount Sharp.

Van Kane

Roscosmos has ambitious planetary exploration plans in the coming decades, including a series of solo lunar missions and joint missions to Mars with the European Space Agency.

Heidi Hammel

Heidi Hammel, the Chair of the American Astronomical Society's Division for Planetary Science, reacts to the recent budget news and the uncertain future for planetary science at NASA.

Emily Lakdawalla

The astronomy world is all a-twitter this morning over the discovery of a new supernova in M82, a galaxy that's in our astronomical backyard,

Casey Dreier

Carl Sagan takes us from the birth to the death of the universe. How do we reconcile our place within a universe that will die? Join us for the latest discussion on episode 10 of Cosmos.

Emily Lakdawalla

In this fun video, the Planetary Society worked with LADEE Lunar Laser Communication Demonstration team to communicate live over their lunar link.

Emily Lakdawalla

A higher-resolution version of the Chang'e 3 lander's panoramic view of the lunar surface has appeared on the Web, and artist Don Davis has cleaned it of artifacts to make a beautiful, seamless view. In other news, the mission has been reorganized to accommodate a possibly year-long adventure on the lunar surface.

Daniel Scuka

We spoke with (a slightly tired but hugely happy) Rosetta Spacecraft Operations Manager Andrea Accomazzo earlier this afternoon and he reports the spacecraft is doing fine!

Emily Lakdawalla

It was a tense half an hour for Rosetta fans all over the world as we waited for a spike in a graph to inform us that Rosetta had awoken from a 31-month slumber to phone home.

Bill Dunford

The latest postcards from Mars Express feature cloudy skies.

Jason Davis

Mike Loucks helps provide a beginner's walk-through of the orbital mechanics behind geosynchronous and geostationary satellites.