What is best time to see northern lights in norway
The Northern Lights Explained | Do you want to know more about northern lights in Norway?
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this is where the story of the Aurora
starts on the Sun a star of average size
among billions of other stars in our
Milky Way using satellites we can image
the sun's dynamic atmosphere called the
chromosphere here we see bright intense
regions and how violently the Sun
behaves every second every day in some
cases large amounts of gas are also
hurled out into space we call these
eruptions coronal mass ejections or CMEs
for short they thrust billions of tons
of particles at speeds up to eight
million kilometers per hour
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during solar maximum solar storms can
occur several times per day and
sometimes they are aimed in the Earth's
direction when the solar storm reaches
earth something strange happens it's as
if it is deflected by an invisible
shield the Earth's magnetic field the
magnetosphere the magnetic fields
coupled together and create a funnel for
the gas streams down on the daylight
side of the pole this is the daytime
aurora which our eyes cannot see the
magnetic fields stretch further rear
woods and couple together the magnetic
field stretched like a rubber band break
and gas from the solar storm streams
back along the magnetic lines towards
the polar regions on the night side this
is nighttime or rora we can see
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here is a more detailed view of the
particles while they are traveling along
the magnetic fields eventually they
collide with atoms in the Earth's
atmosphere these collisions usually take
place between 80 to 300 kilometers above
ground here they cause oxygen and
nitrogen to become excited and to emit
light in much the same way as in
fluorescent lights or in advertising
neon signs
the result is a dazzling dance of green
blue white and red light in the sky
forming in a ring shaped area called the
Aurora oval
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