Santa Barbara Museum of Natural History
  Home >

-sub test 3
-Home
-community
-hi
-Camouflage Techniques
-Take a Peek
-The Natural History of Water
-2009 ArtWalk Indoor Exhibition Winners
-What is a Watershed
-Astronomers of the Month
-Super Sea Animals
-Meet the Animals
-Blue Whale
Skeleton Dismantle
-Designing Your Learning Experience
-Coffee Camps
-Meet the Animals
-Sneak Peek into the Science PlayLab
-Wild Shrimp & Prawns
-2012 - The Sun's Magnetic Field
-The Natural History of Butterflies
-The Natural History of Butterflies
-Let's Talk About Race
-Let's Talk About Race
-Restoring the Skull
-Restoring the Skeleton
-Mug Shots
-Planning Lunch
-2012 - Planetary Conjunction
-Tuna
- The Butterfly Nursery
-Biodiversity & You
-Superpowers Headquarters
-Water Pollution
-What is a Watershed
-WANTED: Plastic Bottles Tops
-The Natural History of Butterflies
-What is a Dinosaur?
-Blue Whale Skeleton Returns
-The Butterfly Nursery
-Biodiversity & You
-Salmon
-Dinosaur Timeline
-Can You Find 'em All?
-The Butterfly Nursery
-What Can You Do?
-Water Pollution
-Message in Water
-Super Hero Kits
-Theme of the Month
-Go Observe!
-Buy-A-Bone Recognition
-Photo Gallery
-What Can You Do
-Message in Water
-About Chris Jordan
-Biodiversity and You
-Sponsors
-Resources
-Support
Butterflies Alive!
-2012 - Galactic Equator
-Scheduling Your Field Trip
-Volunteers Needed!
-Preparing for your Visit
-2012 - The Maya Calendar
-sub test 2 giants
-What Can You Do
-2012 - Planet X and Nibiru
-Secrets to a Great Field Trip
-Butterflies Alive!
Mobile App
-Sponsors
-Butterflies Alive Sponsors
-SBnature.app
- Butterfly Sponsorship
-Butterflies Alive Guide
 

  2012 - The Sun's Magnetic Field
share page:


 

CLAIM: The Sun's magnetic field will reverse in 2012 and a huge solar storm could destroy our world!

 

FACTS: The Sun goes through a cycle of greater and lesser sunspot activity; the cycles last between 9 and 12 years and they have been recorded for several centuries. The Sun’s magnetic field (or at least its main field) reverses during the cycle’s maximum. The increased solar activity produces flares and/or coronal mass ejections (much more powerful) which emit electromagnetic waves and high-speed charged particles (ionizing radiation) into space and towards Earth. This radiation can disrupt or even permanently disable satellites, power grids, communications and other electronic devices.

Earth has been subjected to many such solar storms in the past: the largest solar storm on record was in 1859 and the only known effect was northern lights observed as far south as the Caribbean.

Another, smaller storm in 1989 disabled part of the Hydro-Quebec power grid leaving millions of people in Quebec without power for over 8 hours. During these hours some satellites lost control although they were rehabilitated later. And last August, during the low solar activity season, Earth was hit by a coronal mass ejection with no serious effects at all. Earth has been showered by fallout from solar storms many, many times in the past… yet here we are.

Today we depend more than ever on electronic devices and these could certainly be damaged by radiation originating in the Sun and the consequences would be serious. However, scientists can predict with certainty neither the intensity of the next solar cycle nor the exact date or time of the next solar storm. Certain forecasts can be made based on the latest data collected from the Sun (which you can follow on http://www.swpc.noaa.gov/SolarCycle/ ) and according to the latest data, it seems this solar cycle (number 24) will not be as intense as some have predicted and it may peak around the year 2013 and not in 2012.

http://solarscience.msfc.nasa.gov/SunspotCycle.shtml

 

Click here to go back to 2012 main hub!

 

Exhibitions | Sea Center | Gladwin Planetarium | Education | Collections & Research
Members | Support SBMNH | About Us | Site Map
Your privacy is important - privacy policy © 2015 Santa Barbara Museum of Natural History