Credit & Copyright: Tor Even Mathisen;
Music: Per Wollen;
Vocals: Silje Beate Nilssen
Explanation:
Have you ever seen an aurora?
Auroras are occurring again with increasing frequency.
With the Sun peaking at its
eleven year maximum in aurora-triggering activity, it is exhibiting
a greater abundance of
sunspots,
flares, and
coronal mass ejections.
Solar activity
like this typically
expels charged particles into the Solar System, some of which impact Earth's magnetosphere
and trigger
Earthly auroras.
In late 2010, the
above timelapse displays
of picturesque auroras were
captured above
TromsЬ,
Norway.
Curtains of auroral light, usually green,
flow,
shimmer and
dance as
energetic particles fall toward the Earth and
excite atoms of air high up in the Earth's atmosphere.
There may even be
opportunities to see
auroras tonight, as
recent solar explosions
have triggered numerous
aurora sightings over the past few days.
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
Январь Февраль Март Апрель Май Июнь Июль Август Сентябрь Октябрь Ноябрь Декабрь |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
|
Публикации с ключевыми словами:
aurora - северное сияние
Публикации со словами: aurora - северное сияние | |
См. также:
Все публикации на ту же тему >> | |
