Democratic Underground Latest Greatest Lobby Journals Search Options Help Login
Google

"The Voyager probes appear to have entered a strange realm of frothy magnetic bubbles"

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
Home » Discuss » Topic Forums » Science Donate to DU
 
bananas Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jun-09-11 08:00 PM
Original message
"The Voyager probes appear to have entered a strange realm of frothy magnetic bubbles"
http://science.nasa.gov/science-news/science-at-nasa/2011/09jun_bigsurprise/

A Big Surprise from the Edge of the Solar System
Play ScienceCast Video

June 9, 2011:
...
Mission scientists say the probes have just sent back some very big news indeed.
...
"The Voyager probes appear to have entered a strange realm of frothy magnetic bubbles," says astronomer Merav Opher of Boston University. "This is very surprising."
...
"The sun's magnetic field extends all the way to the edge of the solar system," explains Opher. "Because the sun spins, its magnetic field becomes twisted and wrinkled, a bit like a ballerina's skirt. Far, far away from the sun, where the Voyagers are now, the folds of the skirt bunch up."

When a magnetic field gets severely folded like this, interesting things can happen. Lines of magnetic force criss-cross and "reconnect". (Magnetic reconnection is the same energetic process underlying solar flares.) The crowded folds of the skirt reorganize themselves, sometimes explosively, into foamy magnetic bubbles.
...
Theories dating back to the 1950s had predicted a very different scenario: The distant magnetic field of the sun was supposed to curve around in relatively graceful arcs, eventually folding back to rejoin the sun. The actual bubbles appear to be self-contained and substantially disconnected from the broader solar magnetic field.
...
"The magnetic bubbles could be our first line of defense against cosmic rays," points out Opher. "We haven't figured out yet if this is a good thing or not."
...

Refresh | +11 Recommendations Printer Friendly | Permalink | Reply | Top
razorman Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jun-09-11 08:04 PM
Response to Original message
1. It is an alien intelligence that will kill anything wearing a red shirt.
Printer Friendly | Permalink | Reply | Top
 
Ian David Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jun-09-11 08:06 PM
Response to Original message
2. It's the Magnetic Santorum Zone. n/t
Printer Friendly | Permalink | Reply | Top
 
sakabatou Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jun-09-11 09:03 PM
Response to Reply #2
5. I was gonna say that
:rofl:
Printer Friendly | Permalink | Reply | Top
 
saras Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jun-09-11 10:02 PM
Response to Reply #5
6. me too - I saw the thread and came here just for that...
Printer Friendly | Permalink | Reply | Top
 
Orrex Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jun-09-11 08:07 PM
Response to Original message
3. Oh come on. Who *hasn't* entered a strange realm of frothy magnetic bubbles at one time or another?
Let them cast the first stone, I say.
Printer Friendly | Permalink | Reply | Top
 
Newest Reality Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Jun-09-11 09:02 PM
Response to Original message
4. Sounds like where I live. - NT
Printer Friendly | Permalink | Reply | Top
 
DU AdBot (1000+ posts) Click to send private message to this author Click to view 
this author's profile Click to add 
this author to your buddy list Click to add 
this author to your Ignore list Thu May 02nd 2024, 11:45 AM
Response to Original message
Advertisements [?]
 Top

Home » Discuss » Topic Forums » Science Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators


Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC