Showing posts with label van allen belts. Show all posts
Showing posts with label van allen belts. Show all posts

Friday, September 30, 2016

New Maps of the South Atlantic Anomaly


Source -Space Weather News for Sept. 30, 2016: http://spaceweather.com

NEW MAPS OF THE SOUTH ATLANTIC ANOMALY: Scientists have long known that our planet's inner Van Allen Belt dips down toward Earth over South America, creating a zone of high radiation known as the South Atlantic Anomaly.  A new study, just published in the AGU journal Space Weather Quarterly, reveals that the anomaly is moving and that it varies with seasons in a way that researchers don't fully understand.

Visit today's edition of Spaceweather.com for the full story.



Image Credit: Schaefer, R. K. et al (2016), Observation and modeling of the South Atlantic Anomaly in low Earth orbit using photometric instrument data, Space Weather, 14, 330–342, doi:10.1002/2016SW001371.

Thursday, February 28, 2013

Van Allen Probes Discover a New Radiation Belt around Earth


Source - NASA Science News for Feb. 28, 2013

NASA's twin Van Allen Probes, launched just last August, have revealed a previously unknown third radiation belt around Earth.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2013/28feb_thirdbelt/

Monday, October 01, 2012

NASA Spacecraft Records 'Earthsong'


Source - NASA Science News for Oct. 1, 2012

A NASA spacecraft has recorded eerie-sounding radio emissions coming from our own planet. These beautiful "songs of Earth" could, ironically, be responsible for the proliferation of deadly electrons in the Van Allen Belts.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2012/28sep_earthsong/

A companion video is posted below and can also be viewed at: http://www.youtube.com/watch?v=MkTL2Ug6llE



License: Standard YouTube License

Friday, August 31, 2012

The Radiation Belt Storm Probes

Source - NASA Science News for August 30, 2012

Most spacecraft try to avoid the Van Allen Belts, two doughnut-shaped regions around Earth filled with "killer electrons." This morning NASA launched two heavily-shielded spacecraft directly into the belts. The Radiation Belt Storm Probes are on a two-year mission to study the Van Allen Belts and to unravel the mystery of their dangerous unpredictability.

The full story can be found here: http://science.nasa.gov/science-news/science-at-nasa/2012/30aug_rbsp/

A companion video is posted below and can also be viewed at: http://www.youtube.com/watch?v=P5KKHzWafDg