Astronomy Picture of the Day
    

Keyword: black aurora
Зеленое и черное северные сияния над Норвегией Green and Black Auroras Over Norway
29.03.2006

What causes gaps between aurora curtains? These unusual gaps can make Research using data from four Cluster spacecraft orbiting the Earth has likely found the secret: auroral gaps, sometimes knows as black auroras, are actually anti-auroras. In normal auroras, electrons and/or predominantly negatively charged particles fall toward Earth along surfaces of constant magnetic field.



Тайна Черного Полярного сияния The Secret of the Black Aurora
31.12.2001

What causes black aurora? These gaps in normal bright aurora are frequently recorded but rarely questioned. Recent research using data from four Cluster spacecraft orbiting the Earth has now likely found the secret: black auroras are actually anti-auroras.





 < June 2024  
Mo Tu We Th Fr Sa Su





12
3456789
10111213141516
17181920212223
24252627282930
January
February
March
April
May
June