<pedrocorreia.net ⁄>
 

<Strange Portal Connects Earth to Sun ⁄ >




clicks: 3641 3641 2008-11-04 2008-11-04 goto ciencia myNews ciencia  Bookmark This Bookmark This


Like giant, cosmic chutes between the Earth and sun, magnetic portals open up every eight minutes or so to connect our planet with its host star.

Once the portals open, loads of high-energy particles can travel the 93 million miles (150 million km) through the conduit during its brief opening, space scientists say.

Called a flux transfer event, or FTE, such cosmic connections not only exist but are possibly twice as common as anyone ever imagined, according to space scientists who attended the 2008 Plasma Workshop in Huntsville, Ala., last week.

"Ten years ago I was pretty sure they didn't exist, but now the evidence is incontrovertible," said David Sibeck, an astrophysicist at the Goddard Space Flight Center in Maryland.

Dynamic bursts

Researchers have long known that the Earth and sun must be connected. For instance, particles from the sun are constantly whisked away via the solar wind and often follow magnetic field lines that connect the sun's atmosphere with terra firma. The field lines allow particles to penetrate Earth's magnetosphere, the magnetic bubble that surrounds our planet.

"We used to think the connection was permanent and that solar wind could trickle into the near-Earth environment anytime the wind was active," Sibeck said. "We were wrong. The connections are not steady at all. They are often brief, bursty and very dynamic."



este é só um excerto do artigo, para aceder ao artigo completo, clique no link em baixo:
this is just a small excerpt from the article, to access the full article please click in the link below:

http://www.space.com/scienceastronomy/081103-mm-magnetic-portals.html




Subscribe News RSS  Subscribe News Updates by E-mail





myNews <myNews show="rand" cat="ciencia" ⁄>

NASA Unveils Their New Launch System

NASA Adminstrator Charlie Bolden and several members of Congress announced today the decision on NAS (...)

clicks: 5837 5837 2011-09-21 2011-09-21 goto url (new window) universetoday.c... goto myNews ciencia


Breakthrough Study Confirms Cause of Short Gamma-Ray Bursts

A new supercomputer simulation shows the collision of two neutron stars can naturally produce the ma (...)

clicks: 6003 6003 2011-04-18 2011-04-18 goto url (new window) nasa.gov/topics... goto myNews ciencia


NASA's Kepler Mission Helps Reveal the Inner Secrets of Giant Stars for the First Time

University of Sydney astrophysicists are behind a major breakthrough in the study of the senior citi (...)

clicks: 5929 5929 2011-04-09 2011-04-09 goto url (new window) nasa.gov/missio... goto myNews ciencia


Best Images from 2010

Here are some of the best space and astronomy images from 2010. These are in no particular order or (...)

clicks: 7535 7535 2011-01-01 2011-01-01 goto url (new window) universetoday.c... goto myNews ciencia


Voyager 1 Has Outdistanced the Solar Wind

The venerable Voyager spacecraft are truly going where no one has gone before. Voyager 1 has now rea (...)

clicks: 6206 6206 2010-12-25 2010-12-25 goto url (new window) universetoday.c... goto myNews ciencia


Food expiration dates: What do they really mean?

Are you one of those people who pour the milk down the drain on the expiration date? Expiration d (...)

clicks: 6157 6157 2010-09-16 2010-09-16 goto url (new window) green.yahoo.com... goto myNews ciencia


NASA - A Galactic Spectacle

A beautiful new image of two colliding galaxies has been released by NASA's Great Observatories. The (...)

clicks: 6173 6173 2010-08-21 2010-08-21 goto url (new window) nasa.gov/missio... goto myNews ciencia


Calculate distance, bearing and more between Latitude/Longitude points

(...)

clicks: 7483 7483 2010-08-12 2010-08-12 goto url (new window) movable-type.co... goto myNews ciencia