Articles

A.J.S. Rayl

As Opportunity worked away on its winter science campaign, the Mars Exploration Rover mission quietly completed its eighth Earth year of exploring the surface of the Red Planet last week, and is now roving on into Year 9 of its 90-day mission.

Emily Lakdawalla

Today Opportunity sent back to Earth the last few frames of the

Emily Lakdawalla

This week's lineup is a largely astronomical crowd so most of the conversation concerned dark matter and boiling exoplanets and imaging the black hole at the center of our galaxy.

Emily Lakdawalla

Phobos-Grunt has returned to Earth, a lot sooner than it should have. Yesterday, at approximately 17:45 UT, the Russian spacecraft and its passengers, including a Chinese orbiter and the Planetary Society's LIFE experiment, descended into Earth's atmosphere.

Emily Lakdawalla

The Russian military is stating that at 17:45 UT, Phobos-Grunt fell into the Pacific Ocean.

Bruce Betts

We explore space for the noblest goals of science and exploration, and we often persevere in spite of challenges. But space exploration is fraught with bad things happening, or, to use the technical term, ouchies. The Planetary Society's Phobos LIFE biomodule will re-enter the Earth's atmosphere in the next few days with the rest of the Phobos-Grunt mission.

Emily Lakdawalla

I'm not looking forward to spending the weekend sitting deathwatch on Phobos-Grunt. It's not science, and it's a sad event, so my instincts would lead me to other subjects. But it contains the Planetary Society's Phobos LIFE experiment.

Jim Bell

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.

A.J.S. Rayl

As New Year's Eve moved from time zone to time zone across planet Earth, the Mars Exploration Rover (MER) team looked to 2012 and wrapping its eighth Earth year of exploring, while up on the Red Planet Opportunity settled into the

Emily Lakdawalla

A letter sent by Lev Zelenyi, director of the Russian Space Research Institute (IKI) to participants in the Phobos-Soil project about the mission's failure.

A.J.S. Rayl

Mars Exploration Rover Opportunity has discovered gypsum and its

Jason Davis

With a new rover, Curiosity, on its way to Mars, Jason Davis takes a look at what we knew - or thought we knew - about the planet back in 1935.

Emily Lakdawalla

After modifying two antennas and attempting to send commands to Phobos-Grunt for weeks without success, ESA has made the decision to stop tracking support.

A.J.S. Rayl

Opportunity roved toward the end of its eighth year of exploration on the Red Planet and chalking up yet another

Emily Lakdawalla

A few fortunate (and forward-thinking) skywatchers looked upward in the hours after Curiosity's launch and were able to see the spacecraft leaving Earth.

Emily Lakdawalla

Maybe it's because I was a kid during the Cold War; I always assume that information about anything nuclear only comes out on that

Emily Lakdawalla

It was a textbook launch for the Atlas V 541 today at 15:02 UTC, and within an hour after liftoff, the Centaur second stage had sent Curiosity on its way for an 8.5-month journey to Mars.

Emily Lakdawalla

Jason Davis put together this neat summary of the checkered history of Mars exploration.

Emily Lakdawalla

On Tuesday, November 22 at 20:25 UTC, a European Space Agency ground station in Perth, Australia, successfully made brief radio contact with Phobos-Grunt.

Emily Lakdawalla

As I was beginning my research for my two magazine articles on the Curiosity rover's upcoming mission to Mars, I needed to figure out for myself how exactly this gigantic, ungainly machine fit in to the context of past Martian missions.