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News brief: Phobos-Grunt has fallen to ground

Posted by Emily Lakdawalla on 2012/01/15 11:21 CST

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

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Phobos-Grunt's upcoming demise: What we know and what we don't

Posted by Emily Lakdawalla on 2012/01/13 12:25 CST

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.

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Reflections on Phobos LIFE

Posted by Bruce Betts on 2012/01/13 10:35 CST

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.

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The state of Earth observation, January 2012

Posted by Jason Davis on 2012/01/09 05:54 CST

As of November 2011, the Earth Observing Handbook counts 109 active missions to study the Earth as a planet, with 112 more approved and planned for the future. Jason Davis provides an overview of key current and upcoming earth-observing missions.

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Dawn Journal: The Om of Orbit Adjustment

Posted by Marc Rayman on 2012/01/09 03:53 CST

The Dawn mission's Project System Engineer Marc Rayman reports that Dawn concluded 2011 more than 40 thousand times nearer to Vesta than it began the year. It is now at its lowest altitude of the mission, conducting a detailed exploration of the protoplanet and continuing to make new discoveries.

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Mars Exploration Rovers Update:Opportunity Climbs to Greeley Haven for Winter, and We Look Back at 2011

Posted by A.J.S. Rayl on 2011/12/31 10:24 CST

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 "saddle" at Greeley Haven preparing for the onslaught of its fifth Martian winter.

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What's up in the solar system in January 2012, and the rest of the year

Posted by Emily Lakdawalla on 2011/12/29 05:57 CST

There will be no planetary launches in 2012, but there is still plenty of deep-space activity to look forward to over the coming year.

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Ringing in the New Year with two new arrivals to the Moon

Posted by Emily Lakdawalla on 2011/12/28 05:21 CST

The twin GRAIL spacecraft are nearly at the end of their three-month cruises to the Moon. Currently being discussed is an extended mission for GRAIL that would begin after the June eclipse and last through most of December 2012.

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Phobos-Grunt: all but over, a letter from IKI

Posted by Emily Lakdawalla on 2011/12/09 07:14 CST

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.

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Mars Exploration Rovers Special Update: Opportunity Finds Best Evidence Yet for Liquid Water in Gypsum at Homestake

Posted by A.J.S. Rayl on 2011/12/07 10:24 CST

Mars Exploration Rover Opportunity has discovered gypsum and its "single most powerful piece of evidence for liquid water on Mars."

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From the 2011 Fall Meeting of the American Geophysical Union (AGU): Voyager 1 at the edge of the solar system

Posted by Emily Lakdawalla on 2011/12/05 04:13 CST

A report on a press briefing about Voyager 1 at the Fall 2011 American Geophyisical Union meeting. The spacecraft has entered a new region between our solar system and interstellar space, which scientists are calling the stagnation region.

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ESA is ending ground station support for Phobos-Grunt

Posted by Emily Lakdawalla on 2011/12/02 12:04 CST

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.

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Dawn Journal: Riding gravitational currents to LAMO

Posted by Marc Rayman on 2011/12/01 04:05 CST

In this update on the Dawn mission, project system engineer Marc Rayman reports that the probe is headed for its low altitude mapping orbit (LAMO), where it will focus on making a census of the atomic constituents and on mapping the gravity field in order to determine Vesta's interior structure.

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Mars Exploration Rovers Update:Opportunity Crunches Homestake, Scouts Locales for Winter

Posted by A.J.S. Rayl on 2011/11/30 10:24 CST

Opportunity roved toward the end of its eighth year of exploration on the Red Planet and chalking up yet another "exciting" textbook discovery for the Mars mission.

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What's up in the solar system in December 2011

Posted by Emily Lakdawalla on 2011/11/29 03:57 CST

What's going on with our planetary explorers in December?

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Curiosity is on its way to Mars!

Posted by Emily Lakdawalla on 2011/11/26 09:09 CST

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.

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Brief contact made with Phobos-Grunt after two weeks of silence

Posted by Emily Lakdawalla on 2011/11/23 11:29 CST

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.

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Phobos-Grunt status, launch plus six days

Posted by Emily Lakdawalla on 2011/11/14 06:37 CST

I said I wasn't going to post again unless the spacecraft talked to us, but I changed my mind because finally there were official comments today about the status of the mission from Roskosmos head Vladimir Popovkin.

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Phobos-Grunt summary, three days after launch

Posted by Emily Lakdawalla on 2011/11/11 02:51 CST

I can summarize the news about the last day's efforts to save Phobos-Grunt in three words: there is none. At least nothing official.

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Phobos-Grunt status, two days after launch

Posted by Emily Lakdawalla on 2011/11/10 12:07 CST

When I last left Phobos-Grunt, Roscosmos had not yet commented on the results of a planned attempt to communicate with the wayward spacecraft at 19:00 UT on November 9.

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