Educated Earth // Videos - Astronomy - Voyager Discovers Structure Of The Heliosheath
User:
Pass:
Remember Me
Forgot Pass Register

Our educational work is entirely supported by people like you. Your donations directly add new exhibits and new features to the website, and even helps us open the Prehistoria Natural History Center!




eXTReMe Tracker

Videos / Astronomy / Voyager Discovers Structure Of The Heliosheath







Voyager Discovers Structure Of The Heliosheath
Loading the player...

Voyager Discovers Structure Of The Heliosheath
Did you know that the solar system is protected by a layer of magnetic fields called the heliosheath? While this has been known by the scientific crowd for a long time, the voyager probes have just reshaped our understanding of this barrier.

Due to the tilt of the magnetic axis in relation to the axis of rotation of the Sun, the heliospheric current sheet flaps like a flag in the wind. The flapping current sheet separates regions of oppositely pointing magnetic field, called sectors. As the solar wind speed decreases past the termination shock, the sectors squeeze together, bringing regions of opposite magnetic field closer to each other. The Voyager spacecraft have now found that when the separation of sectors becomes very small, the sectored magnetic field breaks up into a sea of nested "magnetic bubbles" in a phenomenon called magnetic reconnection. The region of nested bubbles is carried by the solar wind to the north and south filling out the entire front region of the heliopause and the sector region in the heliosheath. This discovery has prompted a complete revision of what the heliosheath region looks like. The smooth, streamlined look is gone, replaced with a bubbly, frothy outer layer.

  • Currently 2.63/5
  • 1
  • 2
  • 3
  • 4
  • 5
Rating: 2.6 / 5 (881 votes)
Posted by kazchen on June 12, 2011
Hits: 3851

More Videos

SOHO - Planets and Comets
SOHO - Planets and Comets
Type: Astronomy
Sand Cat
Sand Cat
Type: Life on Earth
Tsunami Washes Away Indonesian Villages
Tsunami Washes Away Indonesian Villages
Type: Earth Sciences
A New Way To Explain Explanation
A New Way To Explain Explanation
Type: Humanity
Criminal Penguins
Criminal Penguins
Type: Life On Earth
New Species Discovered in Mekong
New Species Discovered in Mekong
Type: Earth Sciences
Traditional Salt Harvests Of Ishikawa
Traditional Salt Harvests Of Ishikawa
Type: Humanity
Hawk Precision - Flying Through Holes
Hawk Precision - Flying Through Holes
Type: Life On Earth
Cordyceps - Parasitic Fungi
Cordyceps - Parasitic Fungi
Type: Life On Earth
Nations Vie For Arctic Resources
Nations Vie For Arctic Resources
Type: Humanity
Raytheon's XOS 2 Exoskeleton
Raytheon's XOS 2 Exoskeleton
Type: Tech & Gadgets
How a Differential Gear Works
How a Differential Gear Works
Type: Tech & Gadgets
Desert Hawk - A Spy In The Sky
Desert Hawk - A Spy In The Sky
Type: War
The Da Vinci Surgical System
The Da Vinci Surgical System
Type: Biology & Medicine
Genetic Modification In Humans - 3D Animation
Genetic Modification In Humans - 3D Animation
Type: Biology & Medicine

Comments

There are no comments on this item.
User: Pass: Remember Me

To comment on this item, please login or register.


Warning: Unknown: Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively in Unknown on line 0