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Now Philae down to sleep

Posted by Emily Lakdawalla on 2014/11/15 05:13 CST | 12 comments

My last post on the drama in Darmstadt, where ground controllers believe Philae may have fell asleep for good.

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With New Horizons Ready to Wake Up, Scientists Prepare for Pluto Encounter

Posted by Jason Davis on 2014/11/14 03:08 CST | 2 comments

When New Horizons wakes up for the final time on Dec. 6, scientists will spend six weeks preparing for the start of the spacecraft's Pluto encounter.

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Philae update: My last day in Darmstadt, possibly Philae's last day of operations

Posted by Emily Lakdawalla on 2014/11/14 12:33 CST | 18 comments

Emily Lakdawalla gives a status report on Philae from the European Space Operations Centre (ESOC) in Darmstadt.

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Philae status, a day later

Posted by Emily Lakdawalla on 2014/11/13 01:26 CST | 9 comments

The Philae team scrambled all morning to comprehend the initially confusing status of the lander, and the picture is much clearer today. Speaking of which, there are lots more pictures!

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Brief Philae "Morning After" update: First ÇIVA panorama from the surface

Posted by Emily Lakdawalla on 2014/11/13 04:53 CST | 1 comments

I'm just getting up to speed on the news from overnight, which is mostly good: Philae remained in contact with the orbiter (which means the CONSERT radar sounding experiment was working), and it's sitting stably on the surface, although it's not anchored in any way. And they released the first ÇIVA image from the ground!

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PHILAE HAS LANDED! [UPDATED]

Posted by Emily Lakdawalla on 2014/11/12 10:21 CST | 16 comments

The landing happened on time just after 16:02 UT today! Philae mission manager Stephan Ulamec said: "Philae is talking to us! The first thing he told us was the harpoons have been fired and rewound. We are sitting on the surface." Those words later turned out not to be true; but we do know at least that Philae survived the landing and is returning good data.

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Philae update: Photo documentation of Philae's separation!

Posted by Emily Lakdawalla on 2014/11/12 08:22 CST | 4 comments

Here it is. We knew hours ago that Philae separation happened, but there's nothing like seeing a photo, seeing Philae's mothership receding into the distance.

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Philae update: "Go" for landing, despite apparent failure of cold-gas jet system [UPDATED]

Posted by Emily Lakdawalla on 2014/11/12 01:26 CST | 4 comments

Philae is "go" for landing. But there has been drama overnight. One of the steps to prepare for landing did not proceed as planned. UPDATE: At 09:03 UTC, the lander separated from the orbiter, beginning a 7-hour descent to the surface of the comet.

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Philae update: First of four "go-no-go" decisions is a GO!

Posted by Emily Lakdawalla on 2014/11/11 01:21 CST | 3 comments

It's been a day of calm before the storm here at the European Space Operations Centre in Darmstadt, as we get ready for the big event tomorrow: Philae's hoped-for landing on a comet. The first of four "go-no-go" decisions has been made, and it's a "go." Mission navigators have gotten data back from Rosetta that indicates that the spacecraft is on the correct trajectory to deliver Philae to the comet.

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Report from Darmstadt: Philae status and early Rosetta results from DPS

Posted by Emily Lakdawalla on 2014/11/11 03:04 CST | 3 comments

I'm reporting live from the press room at the European Space Operations Centre in Darmstadt, Germany. There's little news on Philae yet except that its status is good. Meanwhile, Rosetta scientists presented their first early comet results at the Division for Planetary Sciences meeting in Tucson, Arizona, which I watched from afar using Twitter.

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Philae landing preview: What to expect on landing day

Posted by Emily Lakdawalla on 2014/11/05 04:15 CST | 8 comments

Earth's first-ever landing on a comet is a week away. On November 12 at 8:35 UT, Philae will separate from Rosetta. Seven hours later, it will arrive at the surface of the comet. Hopefully, Philae will survive the landing, and begin to return data.

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Mars Exploration Rovers Update: Opportunity Images Comet, Ducks Storm, Departs Ulysses
Sols 3800 - 3829

Posted by A.J.S. Rayl on 2014/11/04 10:02 CST

As winds whirled and converged to the west of Endeavour Crater, Opportunity's power dropped dramatically in October, but the Mars Exploration Rover (MER) pressed on. By month's end, the robot field geologist had completed her assignments – including capturing the first close-in shot of a comet from the surface of the Red Planet – and was roving onward through the darkness, driving the mission into the 130th month of what started out more than 10-and-a-half years ago to be a 3-month tour.

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Chang'e 5 test vehicle flying on to Earth-Moon L2

Posted by Emily Lakdawalla on 2014/11/03 12:21 CST | 3 comments

The Chang'e 5 test vehicle service module did not follow the sample return capsule into Earth's atmosphere. Instead, it successfully performed a divert maneuver, and is now on its way to the Earth-Moon L2 point

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Dawn Journal: Ion thrusting (or not)

Posted by Marc Rayman on 2014/11/02 02:30 CST | 8 comments

Marc Rayman gives the latest update on the Dawn mission, focusing this time on the performance of its ion propulsion system.

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Chang'e 5 test vehicle "Xiaofei" lands successfully

Posted by Emily Lakdawalla on 2014/10/31 06:23 CDT | 1 comments

The Chang'e 5 test vehicle landed successfully in Inner Mongolia today after an 8-day mission. It demonstrated technology that China plans to use for automated sample return by the Chang'e 5 mission in 2017.

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Hayabusa 2 nearly ready for launch: Photos from Tanegashima, and new artist's renderings

Posted by Emily Lakdawalla on 2014/10/30 10:15 CDT | 2 comments

On October 27, JAXA provided media with an opportunity to view the Hayabusa 2 spacecraft at the Tanegashima space center, where it's making final preparations for launch. Koumei Shibata was there, and took several photos. And artist Go Miyazaki has shared several terrific new renderings of the spacecraft in flight.

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UPDATED: China successfully launched test mission for Chang'e 5 program today

Posted by Emily Lakdawalla on 2014/10/23 09:54 CDT | 2 comments

China launched to the Moon today! The spacecraft will have a brief, 8-day mission, out to the Moon and back. It is an engineering test for the technology that the future Chang'e 5 sample return mission will need to return its precious samples to Earth.

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Status update: All Mars missions fine after Siding Spring flyby

Posted by Emily Lakdawalla on 2014/10/20 12:07 CDT | 2 comments

All seven Mars spacecraft are doing perfectly fine after comet Siding Spring's close encounter with Mars.

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Curiosity update, sols 764-781: Work complete at Confidence Hills; puzzling arm issues

Posted by Emily Lakdawalla on 2014/10/17 12:53 CDT | 7 comments

Curiosity spent a total of four weeks at Confidence Hills, feeding samples to SAM and CheMin several times. On two weekends during this period, the rover's activities were interrupted by faults with the robotic arm. Curiosity drove away from Confidence Hills on sol 780, and is ready to observe comet Siding Spring over the weekend.

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Finally! New Horizons has a second target

Posted by Emily Lakdawalla on 2014/10/15 01:02 CDT | 18 comments

What a huge relief: there is finally a place for New Horizons to visit beyond Pluto. A team of researchers led by John Spencer has discovered three possible targets, all in the Cold Classical part of the Kuiper belt. One is particularly easy to reach. New Horizons would fly past the 30-45-kilometer object in January 2019.

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