Did you know that lunar
eclipses are produced by the Earth casting its shadow on the Moon?
Do you know why volcanic ash is a problem for air travelers?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Plasmoid
xPlasmoid : A structure of plasma and magnetic fields proposed to explain several natural phenomena including magnetic bubbles in magentospheres and ball lightning
The sun goes through cycles that last approximately 11 years. These solar cycle include phases with more magnetic activity, sunspots, and solar flares. They also include phases with less activity. The...Read more