Rosetta: Alarm to sound for comet mission

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Re: Rosetta: Alarm to sound for comet mission

#201  Postby DougC » Mar 18, 2015 8:26 pm

B.B.C. - Comet's wind mystery may be solved

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Re: Rosetta: Alarm to sound for comet mission

#202  Postby Onyx8 » Mar 19, 2015 12:58 am

How exciting is that.

"We may just be starting when we thought we would be coming to the end. It's made us re-define some of the science objectives in a way because we could be in a territory we never thought we would be in."


If Philae had landed as they wanted then it would likely be dead now from over-heating.
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Re: Rosetta: Alarm to sound for comet mission

#203  Postby DougC » Mar 21, 2015 9:26 pm

B.B.C. - Rosetta's comet is spinning down
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Re: Rosetta: Alarm to sound for comet mission

#204  Postby DougC » Apr 14, 2015 12:38 pm

B.B.C. - Rosetta comet lander tells magnetic story
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Re: Rosetta: Alarm to sound for comet mission

#205  Postby THWOTH » Apr 15, 2015 2:24 am

Image


ESA Web Portal wrote:
14 April 2015

Measurements made by Rosetta and Philae during the probe’s multiple landings on Comet 67P/Churyumov-Gerasimenko show that the comet’s nucleus is not magnetised.

Studying the properties of a comet can provide clues to the role that magnetic fields played in the formation of Solar System bodies almost 4.6 billion years ago. The infant Solar System was once nothing more than a swirling disc of gas and dust but, within a few million years, the Sun burst into life in the centre of this turbulent disc, with the leftover material going into forming the asteroids, comets, moons and planets.

The dust contained an appreciable fraction of iron, some of it in the form of magnetite. Indeed, millimetre-sized grains of magnetic materials have been found in meteorites, indicating their presence in the early Solar System.

This leads scientists to believe that magnetic fields threading through the proto-planetary disc could have played an important role in moving material around as it started to clump together to form larger bodies.

But it remains unclear as to how crucial magnetic fields were later on in this accretion process, as the building blocks grew to centimetres, metres and then tens of metres across, before gravity started to dominate when they grew to hundreds of metres and kilometres in scale...

http://www.esa.int/Our_Activities/Space ... magnetised
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Re: Rosetta: Alarm to sound for comet mission

#206  Postby DougC » Apr 20, 2015 4:22 pm

B.B.C. - Rosetta's comet throws out big jet

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Re: Rosetta: Alarm to sound for comet mission

#207  Postby CdesignProponentsist » Apr 20, 2015 11:06 pm

And in a series of new pictures from its Osiris science camera system, the probe watched the jet burst from the duck-shaped comet's "backside".


How embarrassing. Here you go...
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Re: Rosetta: Alarm to sound for comet mission

#208  Postby Rumraket » Apr 21, 2015 3:14 pm

Any news about he lander and the possibility that it might recieve enough light to start waking up anytime soon?
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Re: Rosetta: Alarm to sound for comet mission

#209  Postby newolder » May 11, 2015 12:27 pm

Rosetta: The whole story

It was one of the most audacious space missions ever. How did it feel to be part of the Rosetta team as it touched down on a comet? As the spacecraft nears its closest approach to the Sun, Richard Hollingham recounts the drama, the disappointments and the jubilation of a 30-year quest.

Please scroll down to begin the journey...

A BBC "bespoke story" page with lots of images 'n' stuff...
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Re: Rosetta: Alarm to sound for comet mission

#210  Postby DougC » May 12, 2015 12:37 am

Just about to post :this: . Great stuff. :) :thumbup:
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Re: Rosetta: Alarm to sound for comet mission

#211  Postby newolder » May 29, 2015 12:26 pm

With a BBC Sky at Night on Rosetta due soon, here's a cartoon about the mission so far...

Also, Icy Rose 67P - Astroconcert for Global Astronomy Month:
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Re: Rosetta: Alarm to sound for comet mission

#212  Postby CdesignProponentsist » May 29, 2015 10:35 pm

A low velocity impact model for how 67P got its rubber ducky shape...


http://www.newscientist.com/article/dn2 ... Wjnuk_BzRY
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Re: Rosetta: Alarm to sound for comet mission

#213  Postby Horwood Beer-Master » Jun 02, 2015 9:34 pm

I doesn't look remotely like a rubber-fucking-duck! I wish people would making that crap comparison! :lay:
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Re: Rosetta: Alarm to sound for comet mission

#214  Postby CdesignProponentsist » Jun 02, 2015 10:22 pm

Image

:P
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Re: Rosetta: Alarm to sound for comet mission

#215  Postby Made of Stars » Jun 04, 2015 10:32 am

Does too.
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Re: Rosetta: Alarm to sound for comet mission

#216  Postby DougC » Jun 12, 2015 1:08 pm

B.B.C. - 'Best candidates' for lost Philae comet lander
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Re: Rosetta: Alarm to sound for comet mission

#217  Postby newolder » Jun 14, 2015 11:31 am

Philae comet lander wakes up

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

Pleased to say I was wrong to think it would't recover. :dance:

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.
This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version.

lol
Image

ROSETTA’S LANDER PHILAE WAKES UP FROM HIBERNATION

Rosetta's lander Philae is out of hibernation!

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).

"Philae is doing very well: It has an operating temperature of -35ºC and has 24 Watts available," explains DLR Philae Project Manager Dr. Stephan Ulamec. "The lander is ready for operations."

For 85 seconds Philae "spoke" with its team on ground, via Rosetta, in the first contact since going into hibernation in November.
...

more @ ESA blog source
Last edited by newolder on Jun 14, 2015 11:41 am, edited 1 time in total.
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Re: Rosetta: Alarm to sound for comet mission

#218  Postby Scot Dutchy » Jun 14, 2015 11:38 am

Great news. :)
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Re: Rosetta: Alarm to sound for comet mission

#219  Postby quisquose » Jun 14, 2015 1:28 pm

:dance:
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Re: Rosetta: Alarm to sound for comet mission

#220  Postby catbasket » Jun 14, 2015 1:33 pm

Hoped for but not really expected news. :dance:
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