WWW.RLFANS.COM • View topic - The Astronomy Thread

Board index Welcome to RLFANS The Sin Bin The Astronomy Thread

Off-topic discussion.
Re: The Astronomy Thread
Post Wed Feb 17, 2016 2:22 pm
Posted by Dally on Wed Feb 17, 2016 2:22 pm
Dally User avatar
Gold RLFANS Member
Gold RLFANS Member

Reputation Points: 76
Rep Position: 222nd / 77,824

Quiz Score: 0

Joined: Sat Dec 22, 2001 12:04 pm
Posts: 14709
I have always thought of the universe as a giant's fart - a big bang, then expansion as the gas rushes and then diffuses away. I suppose some bright spark could disprove (without igniting!) my idea?
Re: The Astronomy Thread
Post Wed Feb 24, 2016 12:41 pm
Posted by Ferocious Aardvark on Wed Feb 24, 2016 12:41 pm
Ferocious Aardvark User avatar
Gold RLFANS Member
Gold RLFANS Member

Reputation Points: 204
Rep Position: 124th / 77,824

Quiz Score: 268

Joined: Sun Feb 17, 2002 8:26 pm
Posts: 28338
Location: MACS0647-JD

ESA's LISA Pathfinder is another part of the search for gravitational waves, and this has now passed a milestone, which is just an amazing feat of technology.

Image
[ (c) Copyright ESA/ATG medialab ]

Basically, the plan was, to have two detectors, in perfect and permanent freefall through space, so effectively completely "weightless", taking the measurements. T

How they did it (very briefly) was
1. Position the satellite at a point approx 1.5m km towards the Sun, where the gravity from Earth and Sun balance out (orbiting the first Sun–Earth ‘Lagrangian point’, L1.)
2. Release the two detectors so that they float freely within their respective containers
3. Using an incredibly sensitive steering mechanism, "fly" the spacecraft around the detectors! - no force will ever be applied to the free-floating detectors again, save the gravity that keeps them in orbit, and the spacecraft will when necessary make minute adjustments to its position, to keep the freefalling detectors in the centre of their housings.

So, the theory goes, the only thing that can cause a disturbance of the detectors would be a passing gravitational wave.

A fuller explanation of this amazing experimental mission here:
http://m.esa.int/Our_Activities/Space_S ... Pathfinder
Last edited by Ferocious Aardvark on stardate Jun 26, 3013 11:27 am, edited 48,562,867,458,300,023 times in total
Re: The Astronomy Thread
Post Wed Feb 24, 2016 1:42 pm
Posted by TheButcher on Wed Feb 24, 2016 1:42 pm
TheButcher User avatar
Silver RLFANS Member
Silver RLFANS Member

Reputation Points: 34
Rep Position: 264th / 77,824

Quiz Score: 0

Joined: Sun Jul 13, 2003 4:01 pm
Posts: 5494
That's an incredible feat of engineering and science. Hopefully, they'll get some results back in the future.
...Diagnosing SBD (Sporting Bipolar Disorder) since 2003...
Negs bringing down the tone of your forum? Keyboard Bell-endery tiresome? Embarrassed by some of your own fans?
Then you need...
TheButcher
I must be STOPPED!!
Vice Chairman of The Scarlet Turkey Clique
Grand Wizard Shill of Nibiru Prime & Dark Globe Champion
Chairman of 'The Neil Barker School for gifted Clowns'
"A Local Forum. For Local People"
Re: The Astronomy Thread
Post Thu Feb 25, 2016 4:24 am
Posted by Ferocious Aardvark on Thu Feb 25, 2016 4:24 am
Ferocious Aardvark User avatar
Gold RLFANS Member
Gold RLFANS Member

Reputation Points: 204
Rep Position: 124th / 77,824

Quiz Score: 268

Joined: Sun Feb 17, 2002 8:26 pm
Posts: 28338
Location: MACS0647-JD

Awesome new images of the plane of our galaxy, the Milky Way, from the Southern hemisphere
A spectacular new image of the Milky Way has been released to mark the completion of the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL). The APEX telescope in Chile has mapped the full area of the Galactic Plane visible from the southern hemisphere for the first time at submillimetre wavelengths — between infrared light and radio waves — and in finer detail than recent space-based surveys.
http://www.eso.org/public/news/eso1606/


Image

To the right of the main page are links to various sizes of image, zoomable etc.

A number of images released including this superb mp4 in ultra HD
http://cdn2.eso.org/videos/ultra_hd/eso1606a.mp4
Last edited by Ferocious Aardvark on stardate Jun 26, 3013 11:27 am, edited 48,562,867,458,300,023 times in total
Re: The Astronomy Thread
Post Mon Mar 07, 2016 8:47 am
Posted by Dreamer on Mon Mar 07, 2016 8:47 am
Dreamer User avatar
Free-scoring winger
Free-scoring winger

Reputation Points: 1
Rep Position: 297th / 77,824

Quiz Score: 0

Joined: Mon Jan 20, 2003 2:35 pm
Posts: 2236
Some nice pics of the recent spectacular Northern Lights display. http://www.bbc.co.uk/news/business-35741589
I have only been wrong once and thats because I thought I was wrong but I was wrong I was right!

Petty authoritarians aren’t man enough to challenge the actions of a person face to face; instead they incite a forum of rumour, innuendo and half truths, and impose rude sanctions to discourage those who dare question fairness.

Anon.
Re: The Astronomy Thread
Post Mon Mar 07, 2016 7:41 pm
Posted by TheButcher on Mon Mar 07, 2016 7:41 pm
TheButcher User avatar
Silver RLFANS Member
Silver RLFANS Member

Reputation Points: 34
Rep Position: 264th / 77,824

Quiz Score: 0

Joined: Sun Jul 13, 2003 4:01 pm
Posts: 5494
Europe's newest climate satellite Sentinal-3A is sending back some stunning images of our planet. Check these out...

Click me

:D
...Diagnosing SBD (Sporting Bipolar Disorder) since 2003...
Negs bringing down the tone of your forum? Keyboard Bell-endery tiresome? Embarrassed by some of your own fans?
Then you need...
TheButcher
I must be STOPPED!!
Vice Chairman of The Scarlet Turkey Clique
Grand Wizard Shill of Nibiru Prime & Dark Globe Champion
Chairman of 'The Neil Barker School for gifted Clowns'
"A Local Forum. For Local People"
Re: The Astronomy Thread
Post Tue Mar 08, 2016 10:09 am
Posted by Ferocious Aardvark on Tue Mar 08, 2016 10:09 am
Ferocious Aardvark User avatar
Gold RLFANS Member
Gold RLFANS Member

Reputation Points: 204
Rep Position: 124th / 77,824

Quiz Score: 268

Joined: Sun Feb 17, 2002 8:26 pm
Posts: 28338
Location: MACS0647-JD

Those images are astonishingly detailed, amazing stuff
Last edited by Ferocious Aardvark on stardate Jun 26, 3013 11:27 am, edited 48,562,867,458,300,023 times in total
Re: The Astronomy Thread
Post Tue Mar 08, 2016 3:54 pm
Posted by Dreamer on Tue Mar 08, 2016 3:54 pm
Dreamer User avatar
Free-scoring winger
Free-scoring winger

Reputation Points: 1
Rep Position: 297th / 77,824

Quiz Score: 0

Joined: Mon Jan 20, 2003 2:35 pm
Posts: 2236
Ferocious Aardvark wrote:
Pluto's icy plains - truly astonishing detail, the resolution is around 80 metres per pixel
This is a screengrab of a partial image, but for the best view go to the page and click on the full length image and scroll. Awesome.

Image

http://www.nasa.gov/image-feature/pluto ... w-horizons

Some interesting theories on a "mobile mantle" on Pluto https://www.ras.org.uk/education-and-ca ... ile-mantle
I have only been wrong once and thats because I thought I was wrong but I was wrong I was right!

Petty authoritarians aren’t man enough to challenge the actions of a person face to face; instead they incite a forum of rumour, innuendo and half truths, and impose rude sanctions to discourage those who dare question fairness.

Anon.
Re: The Astronomy Thread
Post Fri Mar 11, 2016 1:55 am
Posted by Ferocious Aardvark on Fri Mar 11, 2016 1:55 am
Ferocious Aardvark User avatar
Gold RLFANS Member
Gold RLFANS Member

Reputation Points: 204
Rep Position: 124th / 77,824

Quiz Score: 268

Joined: Sun Feb 17, 2002 8:26 pm
Posts: 28338
Location: MACS0647-JD

An awesome new view of the shadow of the Moon crossing the face of the Earth during the 9th March solar eclipse - as seen from the DSCVR (Deep Space Climate Observatory), from a distance of 1 million miles.

http://www.space.com/32224-moon-shadow- ... video.html
Last edited by Ferocious Aardvark on stardate Jun 26, 3013 11:27 am, edited 48,562,867,458,300,023 times in total
Re: The Astronomy Thread
Post Fri Apr 08, 2016 8:54 am
Posted by Ferocious Aardvark on Fri Apr 08, 2016 8:54 am
Ferocious Aardvark User avatar
Gold RLFANS Member
Gold RLFANS Member

Reputation Points: 204
Rep Position: 124th / 77,824

Quiz Score: 268

Joined: Sun Feb 17, 2002 8:26 pm
Posts: 28338
Location: MACS0647-JD

Congrats to Toynbee School in Chandler’s Ford whose magnificent and intrepid teddy bear, Derek, has soared to 95,000 feet and in so doing, proved the shape of the globe! ;)

Image

Sadly, at the moment poor Derek is missing, probably abducted by aliens, but his achievement will forever make him a giant among bears. The amazing and heart-wrenching video of his epic and fearless journey here:

https://youtu.be/ZokqwxBzDbI
Last edited by Ferocious Aardvark on stardate Jun 26, 3013 11:27 am, edited 48,562,867,458,300,023 times in total
PreviousNext

Who is online

Users browsing this forum: No registered users and 53 guests

Quick Reply

Subject: Message:
   

Return to The Sin Bin


POSTSONLINEMEMBERSRECORDYOUR TEAM
4,957,9791,86077,8244,559SET
LOGIN HERE
or REGISTER for more features!.
Thu 26th Sep 19:45
SLXXIV
SALFORD
v
CASTLEFORD
Fri 27th Sep 10:50
NRL
CANBERRA
v
SOUTHS
Fri 27th Sep 19:45
SLXXIV
ST.HELENS
v
WIGAN WARRIORS
Sat 28th Sep 10:50
NRL
SYDNEY ROOSTERS
v
MELBOURNE STORM
Sun 29th Sep 12:00
 CH1
NEWCASTLE
v
DONCASTER
Sun 29th Sep 13:00
WSL
ST.HELENSW
v
CASTLEFORDW
Sun 29th Sep 14:00
WSL
LEEDSW
v
WIGANW
Sun 29th Sep 14:00
WSL
BRADFORDW
v
YORKW
Sun 29th Sep 18:30
 CH
TOULOUSE
v
FEATHERSTONE
Sat 26th Oct 08:00
GB
TONGA
v
GB LIONS
ALL SCORES PROVIDED BY RLFANS.COM (SETTINGS)





11