Articles

Jason Davis

Ahead of NASA's CCiCap partner selection, here is an up-to-date list of each company's milestones.

Dante Lauretta

The development of the OSIRIS-REx spacecraft continues to make great progress having recently completed static load testing.

Emily Lakdawalla

At the European Planetary Science Congress held this week in Portugal, the Rosetta team showcased some early science results from Rosetta's mission to comet Churyumov-Gerasimenko.

Jason Callahan

The history of planetary exploration repeats itself starting with a resurgent program in the 90s and 2000s that launched a new fleet of planetary spacecraft. Like our first story, this great success rewarded by deep budget cuts.

Jason Davis

NASA astronaut Steve Swanson and Russian cosmonauts Alexander Skvortsov and Oleg Artemyev are safely back on Earth following a five-and-a-half month stay aboard the International Space Station.

Casey Dreier

Watch Planetary Society President Jim Bell testify before a congressional subcommittee on Wednesday, September 10th.

Tony Farnham

Comet Siding Spring is going to make a very close approach to Mars in October. Any comet dust that reaches Mars has the potential to inflict significant damage on the spacecraft orbiting the planet. As it turns out, however, Mars and its orbiters are likely to see very few, if any, impacts. Why?

Jason Callahan

The first three decades of planetary exploration tell a story that sounds all-too-familiar to modern day space advocates. Growth, peak, and then collapse of hard-earned capability. This is the story of planetary science for the first half of its existence.

Emily Lakdawalla

More masterful processing of Dawn Vesta images by Björn Jónsson, including Aelia crater and some mysterious dark splats near Fulvia crater.

Emily Lakdawalla

According to a report in the Times of India, ISRO is deciding today whether to test-fire Mars Orbiter Mission's main engine to make sure it will work for their all-important orbit insertion maneuver on September 24. Both ISRO's Mars Orbiter Mission and NASA's MAVEN are in good health and on track for their arrivals in three weeks.

Emily Lakdawalla

ESA released another set of NavCam images of the comet today, and lo and behold, there are jets! We knew they were there, from an earlier OSIRIS image, but it's tremendously cool to see the comet behaving like a proper comet should.

Casey Dreier

Senior review recommends continuing all major planetary exploration missions, but not without some changes.

Emily Lakdawalla

Last year, rumors swirled that NASA may be so pinched for dollars that the agency might end the Cassini mission early. Today, Cassini received the welcome news that it has formally been funded through the planned end of its extended-extended mission in 2017. A huge congratulations to the Cassini mission!

Jason Davis

Two weeks after radio anomalies scrubbed LightSail's day-in-the-life test, the team continues to close in on the source of the problem.

A.J.S. Rayl

After setting the new off-Earth rover distance record in July, Opportunity roved on in August, driving south along the eastern edge of Endeavour Crater's western rim to Wdowiak Ridge on its journey to the next big destination, Marathon Valley.

Marc Rayman

Marc Rayman updates us on the Dawn mission, its plans from high to low altitude mapping orbits at Ceres, and what the intrepid spacecraft will pursue next.

Emily Lakdawalla

After a pause of about a week in daily image releases from Rosetta, ESA has begun sharing four-image sets of photos of comet Churyumov-Gerasimenko and invited the public to help produce pretty pictures from them.

Emily Lakdawalla

The excitement is building for Hayabusa2! The spacecraft is now complete and ready to be shipped to its launch site. JAXA unveiled its next interplanetary traveler to the media in a special event on August 31.

Karl Battams

Karl Battams highlights the historic discovery, by an Air Force satellite, of a sungrazing comet.

Jason Callahan

NASA has explored the solar system since the 1960s, but it has rarely been the top priority for the space agency. Jason Callahan breaks down how planetary science has been funded over the years within NASA's larger budget.