MOSCOW, January 3. /TASS/. The highest-class solar flare, this year’s first, occurred on Friday, the Moscow-based Institute of Applied Geophysics reported.
"At 2:39 p.m. Moscow time (11:39 a.m. GMT) on January 3, an X 1.2 class solar flare that lasted 20 minutes was registered," the research institute said in a statement.
Two flares of similar intensity, X 1.1. and X 1.5, were last reported on December 30. Solar flares are usually accompanied with bursts of solar plasma that can trigger geomagnetic storms upon reaching Earth.