Tag: Canada

A Tetrad of Lunar Eclipses

A Tetrad of Lunar Eclipses

Yesterday EarthSky.org posted an article on the upcoming set of four total lunar eclipses that will be visible in the US. A total lunar eclipse occurs when, with the Sun, Earth and Moon in alignment, the Moon moves through the Earth’s shadow. A lunar eclipse highlights two points in the chart – the positions of […]

By March 29, 2014 Read More →