Thanks to Science Channel
Visualisation by Lutz Rastaetter, Community Coordinated Modeling Center (CCMC)/NASA GSFC
Credit: CCMC Services
A video made by NASA
Thanks to NASA
A video made by NASA
Thanks to NASA
A video made by the French CNES Agency on solar oblateness
Thanks to CNES
Description: Aurora are colorful lights in the night time sky primarily appearing in Earth's polar regions. But what causes them? The culprit behind aurora is our own Sun and the solar plasma that is ejected during a magnetic event like a flare or a coronal mass ejection. This plasma travels outward along with the solar wind and when it encounters Earth's magnetic field, it travels down the field lines that connect at the poles. Atoms in the plasma interacts with atoms in Earth's upper atmosphere. This reaction produces the colorful lights we call aurora.
Thanks to NASA.gov
Coronal Mass Ejection (Jan 6, 2014)
Thanks to BPEarthWatch