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muriel_volestrangler

(101,320 posts)
Sun Jun 14, 2015, 07:32 AM Jun 2015

Philae comet lander wakes up

Source: BBC

The European Space Agency (Esa) says its comet lander, Philae, has woken up and contacted Earth.

Philae was dropped on to the surface of Comet 67P by its mothership, Rosetta, last November.

It worked for 60 hours before going to sleep when its solar-powered battery ran flat.

BBC Science Correspondent Jonathan Amos says the comet has since moved nearer to the sun and Philae has enough power to work again.


Read more: http://www.bbc.co.uk/news/science-environment-33126885



28 replies = new reply since forum marked as read
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Philae comet lander wakes up (Original Post) muriel_volestrangler Jun 2015 OP
Awesome. nt bemildred Jun 2015 #1
Yay! MannyGoldstein Jun 2015 #2
Great! nt brer cat Jun 2015 #3
Yay Philae! truthisfreedom Jun 2015 #4
At last, some great news! Frank Cannon Jun 2015 #5
Great news! longship Jun 2015 #6
Splendid! blackspade Jun 2015 #7
Hello Earth! Can you hear me? #WakeUpPhilae - 7792 retweets and counting ... muriel_volestrangler Jun 2015 #8
Yesssss! sofa king Jun 2015 #9
Yep,. real data: muriel_volestrangler Jun 2015 #10
Wonderful! sofa king Jun 2015 #11
There's also DSCOVR and Juno bananas Jun 2015 #27
Wow. What a luck break! BumRushDaShow Jun 2015 #12
Furthermore, they may have found Philae visually. longship Jun 2015 #13
Great news! Little Tich Jun 2015 #14
Excellent!! Thespian2 Jun 2015 #15
worked a bit and went to sleep? Oh great...another taking advantage of the system! NRaleighLiberal Jun 2015 #16
+1 christx30 Jun 2015 #26
It's getting hot in here jakeXT Jun 2015 #17
I think the jets are pretty tenuous muriel_volestrangler Jun 2015 #18
Woot ! Some say luck; I say good engineering Bernardo de La Paz Jun 2015 #19
Good News! n/t Jeroen Jun 2015 #20
SWEET!!! calimary Jun 2015 #21
The USA has got the Dawn and New Horizons probes doing great things this year muriel_volestrangler Jun 2015 #22
Yea, The little lander that could. BlueJazz Jun 2015 #23
I don't like the sound of this. Hassin Bin Sober Jun 2015 #24
Comet-Lander "Philae" Wakes Up and Phones Home Judi Lynn Jun 2015 #25
I'm so thrilled it woke up! burrowowl Jun 2015 #28

Frank Cannon

(7,570 posts)
5. At last, some great news!
Sun Jun 14, 2015, 08:05 AM
Jun 2015

My wife and I got so into that little lander's mission. It was such a monumental achievement. Then it, sadly, went on hiatus. But this is terrific!

sofa king

(10,857 posts)
9. Yesssss!
Sun Jun 14, 2015, 08:44 AM
Jun 2015

It hasn't been picked up by phys.org yet, which is my gold standard of "probably not bullshit."

But if it has actually happened and ESA is getting data back, then that mission just massively increased the amount of Science points it will be awarded in Kerbal Space Program.

muriel_volestrangler

(101,320 posts)
10. Yep,. real data:
Sun Jun 14, 2015, 08:47 AM
Jun 2015
The signals were received at ESA's European Space Operations Centre in Darmstadt at 22:28 CEST on 13 June. More than 300 data packets have been analysed by the teams at the Lander Control Center at the German Aerospace Center (DLR).
...
For 85 seconds Philae "spoke" with its team on ground, via Rosetta, in the first contact since going into hibernation in November.

When analysing the status data it became clear that Philae also must have been awake earlier: "We have also received historical data - so far, however, the lander had not been able to contact us earlier."

Now the scientists are waiting for the next contact. There are still more than 8000 data packets in Philae’s mass memory which will give the DLR team information on what happened to the lander in the past few days on Comet 67P/Churyumov-Gerasimenko.

http://blogs.esa.int/rosetta/2015/06/14/rosettas-lander-philae-wakes-up-from-hibernation/

sofa king

(10,857 posts)
11. Wonderful!
Sun Jun 14, 2015, 08:59 AM
Jun 2015
http://www.esa.int/Our_Activities/Space_Science/Rosetta

My father the Apollo rocket scientist is more amazed and fascinated by this mission than any of the other totally amazing missions ongoing, including but not limited to:

Lunar Reconnaissance Orbiter:

http://lroc.sese.asu.edu/

Dawn Mission to Vesta and Ceres:

http://dawn.jpl.nasa.gov/

New Horizons to Pluto:

http://pluto.jhuapl.edu/

Cassini's final Saturn missions:

http://saturn.jpl.nasa.gov/

There may not be another year of space science like this one for decades to come.

BumRushDaShow

(129,053 posts)
12. Wow. What a luck break!
Sun Jun 14, 2015, 09:10 AM
Jun 2015

I pretty much gave up on that based on where and now it landed on the comet. Let's just hope that some unmapped piece of rock or debris doesn't impact with the comet.

longship

(40,416 posts)
13. Furthermore, they may have found Philae visually.
Sun Jun 14, 2015, 09:33 AM
Jun 2015

Here, a previous DU post about that.
http://www.democraticunderground.com/?com=view_post&forum=1228&pid=39502

Also, as in my response in that thread, Universe Today covered that particular story.
Have We Found Rosetta's Lost Philae Lander? There are plenty of pics at the link a couple of which I included in the DU thread above. Reproduced here.

The five candidates, all but the upper left were rejected.


The smoking gun:

The October 22 image was before Philae landed.

Is this Philae?

NRaleighLiberal

(60,014 posts)
16. worked a bit and went to sleep? Oh great...another taking advantage of the system!
Sun Jun 14, 2015, 09:56 AM
Jun 2015

Wait until Faux news gets hold of this!



Great news from a science buff!

christx30

(6,241 posts)
26. +1
Sun Jun 14, 2015, 04:54 PM
Jun 2015

I know, right! And now the thing just woke up so it could get some sun?! Hello? Not everyone has time to get a tan. Some of us have work.

jakeXT

(10,575 posts)
17. It's getting hot in here
Sun Jun 14, 2015, 10:32 AM
Jun 2015


I wonder if the jets shifted the lander or is it just the intensity of the sun ...

muriel_volestrangler

(101,320 posts)
18. I think the jets are pretty tenuous
Sun Jun 14, 2015, 10:46 AM
Jun 2015

They catch the light, but I don't think they're enough to budge the lander, unless it was incredibly finely balanced.

Bernardo de La Paz

(49,002 posts)
19. Woot ! Some say luck; I say good engineering
Sun Jun 14, 2015, 10:58 AM
Jun 2015

Yes, there was some luck. But it is good engineering that created the autonomous system that collects such power as it is able and calls home. Good engineering foresight that things can go wrong and to plan for such events.

muriel_volestrangler

(101,320 posts)
22. The USA has got the Dawn and New Horizons probes doing great things this year
Sun Jun 14, 2015, 12:17 PM
Jun 2015

I think NASA is doing fine.

Judi Lynn

(160,542 posts)
25. Comet-Lander "Philae" Wakes Up and Phones Home
Sun Jun 14, 2015, 04:47 PM
Jun 2015

Comet-Lander "Philae" Wakes Up and Phones Home

The historic space probe has sent signals to Earth, ending seven months of silence

By Celeste Biever, Elizabeth Gibney and Nature magazine | June 14, 2015

Philae, the space probe that made history when it landed on a comet in November 2014, is awake. The European Space Agency (ESA) announced today (June 14) that it had received signals from the comet lander last night, at 22:28 Central European Standard Time. They were the first in over seven months.

Excited scientists on the mission told Nature that Philae has probably been awake for a few days and that they hope the lander will start some low-risk science activities in the coming days—assuming that Philae makes contact again.

"Philae is doing very well: It has an operating temperature of -35ºC and has 24 Watts available," said ESA project manager Stephan Ulamec of the German Aerospace Centre (DLR) near Cologne, according to an ESA statement. "The lander is ready for operations."

ESA says that for 85 seconds Philae “spoke” with ESA ground control via the spacecraft Rosetta, which is orbiting 67P.

More:
http://www.scientificamerican.com/article/comet-lander-philae-wakes-up-and-phones-home/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciam%2Fspace+%28Topic%3A+Space%29

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