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Author Topic: Wonderful close-ups of Rosetta's comet  (Read 28137 times)
stannn
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« Reply #45 on: June 14, 2015, 03:59:23 PM »

http://www.telegraph.co.uk/news/science/space/11673849/Philae-Europes-comet-lander-wakes-up.html
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« Reply #46 on: June 14, 2015, 06:24:00 PM »

Yeah wonderfull news, hopefully its long sleep hasn't done any lasting damage and it will collect some usefull information and piccys. After all it was just waiting for the sun to come out.

Desp
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« Reply #47 on: June 15, 2015, 12:28:36 AM »

Pleased and surprised to hear this on the radit this afternoon. Looking forward to seeing some more photos of the surface, and maybe even active jets close-up. It's going to be an exciting month, together with the Pluto fly-by in 29days.
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« Reply #48 on: June 16, 2015, 09:27:37 AM »

http://www.newscientist.com/article/dn27723-philae-awakes-what-next-for-probe-after-7-month-nap-on-comet.html#.VX_ZFGt5mSM
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« Reply #49 on: June 17, 2015, 12:32:41 AM »

Worrying that they're only managing about a minute's worth of communication at a time. Before it ran out of battery, it seemed to be able to upload large amounts of data, so let's hope repositioning the orbiter sorts this out. Would be good to see a few more pictures from the surface.
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« Reply #50 on: June 17, 2015, 08:18:59 PM »

http://www.newscientist.com/article/dn27736-our-dream-scenario-for-philae--and-mission-finale-for-rosetta.html#.VYHDN2t5mSM
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« Reply #51 on: July 31, 2015, 04:52:31 PM »

http://www.bbc.co.uk/news/science-environment-33720951
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« Reply #52 on: August 01, 2015, 03:01:24 PM »

I couldn't see anything relating to concentration - would be nice to know whether these are barely detectable quantities, or quite high concentrations. I suspect it's difficult to provide a concentration, as it was just sniffing rareified air containing variable amounts of dust.

Looking at the Rosetta website, they've released a whole load more photos since I last looked, including several of the 'bounce'

Shame they only sent monochrome cameras!
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« Reply #53 on: August 06, 2015, 12:15:09 AM »

They probably have LRGB filters on the cameras but maybe they can't use them due to lack of power?

Desp
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« Reply #54 on: August 06, 2015, 10:37:17 AM »

You could be right. In hindsight, I bet they wish they sent a slightly bigger battery or a nuclear TEG.
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« Reply #55 on: August 06, 2015, 02:50:09 PM »

You could be right. In hindsight, I bet they wish they sent a slightly bigger battery or a nuclear TEG.
Sure, but then again, what they did decide to send has on the whole been remarkably successful. The landing didn't go to plan, but it did achieve a lot, and landing was always going to be a gamble.
They probably did the best they could with the technology, funds & weight limits they had available, with everything probably having to be justified though numerous committees, and all the time aware that even a small failure could be ruinous to the whole expedition.

20/20 hindsight is an awful lot easier than 20/20 foresight...  Grin
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« Reply #56 on: August 07, 2015, 12:04:54 AM »

In the live show on the landing day, I remember them saying that it was built on a very tight budget, so yes indeed, they have achieved an awful lot more than they had hoped for. I think it's very sad that the landing didn't go according to plan, and even sadder that they haven't manage to maintain a signal with the lander after it woke up - I suspect it's ended upside-down due to comet activity, or something has fallen on it.

Applying 20/20 hindsight to a lot of missions would make them a lot more useful! I'm never ceased to be amazed at the likes of Nasa in the recent Pluto flyby - that they can be so confident (eg picking up the 20Watt Radio signal from 3+Billion miles away, and being confident enough in the space probe to relay the data collected in the 3 or 4 minutes of flyby, over the next 18months.
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« Reply #57 on: August 08, 2015, 09:42:41 PM »

Comet 67P is close to perihelion.
http://www.theguardian.com/science/2015/aug/08/rosetta-space-probe-comet-67p-closest-to-sun
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« Reply #58 on: August 09, 2015, 08:52:26 PM »

They said the unexpected shape is due to a probable low speed collison between two bodies, but I think it looks more like an apple core. is the 'neck' of the comet the equator, in which case it's simply the bit that has been most eroded by sunlight.
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« Reply #59 on: September 05, 2016, 06:18:51 PM »

Philae has been spotted.
http://www.dailymail.co.uk/sciencetech/article-3774604/Philae-Rosetta-s-lost-lander-spotted-comet-67P-just-weeks-probe-s-suicide-mission.html

http://www.esa.int/Our_Activities/Space_Science/Rosetta/Philae_found
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