FOLLOW ESA'S MISSION TO COMET 67P/C-G

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PostTue Aug 05, 2014 8:24 am » by Toxic32


If you want to follow what's happening with the Rosetta mission. If you have any more links post them here.

Rosetta will be the first mission in history to rendezvous with a comet, escort it as it orbits the Sun, and deploy a lander. During its 10 year journey towards comet 67P/Churyumov-Gerasimenko, the spacecraft has passed by two asteroids: 2867 Steins (in 2008) and 21 Lutetia (in 2010). The spacecraft entered deep-space hibernation mode in June 2011, and 'woke up' on 20 January 2014. Rosetta will arrive at the comet in August 2014, and deploy the Philae lander in November 2014.


http://sci.esa.int/rosetta/
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PostTue Aug 05, 2014 8:57 am » by DarkHeart


Toxic32 wrote:If you want to follow what's happening with the Rosetta mission. If you have any more links post them here.



Crikey I had forgotten about this, talk about a slow story, get on with it !

http://www.disclose.tv/forum/post968067.html?hilit=Rosetta#p968067


:mrgreen:

That's one odd looking rock !

http://blogs.esa.int/rosetta/files/2014/08/ESA_ROSETTA_NAVCAM_20140803_cropped_interpolatedx2.jpg
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PostWed Aug 06, 2014 9:19 am » by Toxic32


Bump....Today is the day.
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PostWed Aug 06, 2014 12:48 pm » by Icarus1


6 August 2014 Last updated at 10:00

Europe's Rosetta probe goes into orbit around distant comet

Europe's Rosetta probe has arrived at a comet after a 10-year chase.

In a first for space history, the spacecraft was manoeuvred alongside a speeding comet to begin mapping its surface in detail.

The spacecraft fired its thrusters for six and a half minutes to finally catch up with comet 67P/Churyumov-Gerasimenko.

"We're at the comet!" said Sylvain Lodiot of the European Space Agency (Esa) operations centre in Germany.
Continue reading the main story
“Start Quote

For me this is the sexiest, most fantastic mission there's ever been”

Dr Matt Taylor Project scientist

"After 10 years, five months and four days travelling towards our destination, looping around the Sun five times and clocking up 6.4 billion km, we are delighted to announce finally 'we are here'," said Jean-Jacques Dordain, director general of Esa.

Launched on board an Ariane rocket in March 2004, Rosetta has taken a long route around our Solar System to catch up with comet 67P.

In a series of fly-pasts, the probe used the gravity of the Earth and Mars to increase its speed during the 6 billion km chase.

To save energy, controllers at the European Space Agency's centre in Darmstadt, Germany put Rosetta into hibernation for 31 months.

In January they successfully woke the craft from its slumber as it began the final leg of the daring encounter.

For the past two months Rosetta has been carrying out a series of manoeuvres to slow the probe down.

The comet is travelling at 55,000km per hour (34,175 mph). The spacecraft's speed has been adjusted so that in relative terms it will be flying beside the comet at a slow walking pace of 1m/sec (2.2mph, 3.6kph).

At around 550m km distance from the Earth, messages are taking over 22 minutes to get to Rosetta.

The distances involved are so great that the complex final command sequence for Wednesday's crucial thruster burn had to be issued on Monday night.

Project scientist, Dr Matt Taylor, said: "For me this is the sexiest, most fantastic mission there's ever been. It's ticking a number of boxes in terms of fascination, exploration, technology and science - predominantly science."

Rosetta key facts

Total cost of the mission is said to be 1.3bn euros
The probe weighed in at 3,000kg at liftoff back in 2004, with over half of that made up of propellant
It has two 14m long solar panels to provide electrical power
The orbiter carries 11 experiments
The lander, Philae, carries nine experiments including a drill to sample beneath the surface

Rosetta will have to continue to fire its thrusters every few days to maintain a triangular orbit at 100km above the rotating rock.

The craft will then travel alongside the comet for the next 15 months, studying it with a range of instruments.

Rosetta has been taking increasingly detailed photographs of 67P as it gets closer. The mysterious comet has been dubbed the "rubber duck", as some images seem to show the familiar shape as it twirls in space.
Harpooning a comet

As it moves towards the Sun, 67P will warm up and its trailing halo of gas and dust - known as the coma - will increase, offering the orbiter the chance to do some detailed scientific work.

The mission gets even more ambitious in November when, after moving Rosetta closer to 67P, mission controllers will attempt to put the Philae lander on the surface.

The lander will use harpoons to anchor itself and will carry out a series of experiments, including drilling into the material that makes up the comet.

The mission aims to add to knowledge of comets and their role in ferrying the building blocks of life around the early Solar System.

Already Rosetta has learned some intriguing details about 67P.

Using the visible, infrared and thermal imaging spectrometer, VIRTIS, Rosetta recorded temperatures on the icy object around -70C, about 20 degrees warmer than expected.

"This result is very interesting, since it gives us the first clues on the composition and physical properties of the comet's surface," said principal investigator of the VIRTIS instrument, Dr Fabrizio Capaccioni from INAF-IAPS, Rome, Italy.





http://www.bbc.co.uk/news/science-environment-28659783
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PostWed Aug 06, 2014 1:45 pm » by Domeika


....The lander will use harpoons to anchor itself

If they haven't taken into account the difference in electrical potential, that could end with a bang. Maybe they have, but scientists seem to want to cling to that old dirty snowball theory despite all evidence to the contrary.

I hope we get some good imagery before it gets vaporized.

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PostThu Aug 07, 2014 10:03 am » by DarkHeart


*WillEase* wrote:I was typing too fast to realize the error butt weasel.

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PostThu Aug 07, 2014 10:30 am » by Canubis


i saw it on tv today...wholy shit
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PostThu Aug 07, 2014 11:33 am » by Mrmurder


anyone know how big the comet is? id like to get some perspective on what im looking at.
I dare say the info is there, but i cant see for looking!

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PostThu Aug 07, 2014 11:42 am » by DarkHeart


Mrmurder wrote:anyone know how big the comet is? id like to get some perspective on what im looking at.
I dare say the info is there, but i cant see for looking!


Good question, the answer is; Dimensions 3.5×4 km (2.2×2.5 mi)

Source, http://en.wikipedia.org/wiki/67P/Churyumov%E2%80%93Gerasimenko

:cheers:
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PostThu Aug 07, 2014 11:46 am » by Canubis


did anyone see the 3d image? looked like testicles?? or a bone...!

honestly..i was collecting lunch payed at work and watching the tv at the deli..

funny thing is there were sutes...n they were buying all the god dam food!
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