Posts by Jeanne John

1) Message boards : The Lounge : Time For Some Stormy Solar Weather! (Message 42721)
Posted 24 Feb 2012 by Profile Jeanne John
Post:


Any lapse in solar activity we may have seen during this period of “solar maximum” came to an end this weekend with some very energetic flares and CMEs, including the one seen above: an M8.7-class flare spotted by NASA’s Solar Dynamics Observatory (SDO) at 3:49 UT this morning.

This comes just 4 days after a strong CME sent a cloud of charged solar particles Earthward on Jan. 19, which impacted our magnetosphere on the afternoon of the 22nd, causing brilliant displays of aurorae around the northern latitudes. (See a gallery of aurora photos on Universe Today.)

Today’s flare has the potential of causing the largest solar storm experienced on Earth since 2005… in addition to more aurorae in the coming nights, some electromagnetic interference may occur.

Facts About Earth
2) Message boards : The Lounge : Science and Technology in the News (Message 42720)
Posted 24 Feb 2012 by Profile Jeanne John
Post:
April 21, 2011 marks the one-year anniversary of the Solar Dynamics Observatory (SDO) First Light press conference, where NASA revealed the first images taken by the spacecraft.

Facts About Earth




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