AurorasVersión en línea
por Victoria Sun
1
The first recording of aururas was from Artistotle in 500's.
2
Some indigenous groups believed that you should never whistle to the auroras.
3
The ovation center is a zone that has the highest possiablity to view auroras.
4
The plasma is produced from the corona layer of the Sun.
5
Aurora Borealis are in the South Pole.
6
The solor cycle last 10 years.
7
The solor wind is called plasma.
8
There are four different types of geomagnetic storms.
9
Dunes are uncommon.
10