fred espenak

How do scientists calculate the total solar eclipse? Where does it appear? The following article will meet your question.

How do scientists calculate the August 21 issue of a total solar eclipse in the US? Where do they know that there will be many solar eclipses from now until 2040?

The US Postal Service will issue capable stamps

By the time the Sun rises in some parts of China and Japan and at the time of the Sun setting in the West of the United States, people in these places may witness a real solar