It is the only type of eclipse where viewers can remove their special solar glasses to look out with open eyes momentarily before the sunlight returns with full brightness illuminating the planet. Experts warn that it is only safe to remove your eclipse glasses during what’s known as totality, the brief period when the Moon is completely blocking the Sun.
A total solar eclipse is a condition when the Moon passes between the Sun and the Earth and completely blocks the Sun's disk, casting a huge shadow on the surface.
Weather permitting, people along the path of totality will see the Sun’s corona, or outer atmosphere, which is usually obscured by the bright face of the Sun.
The Sun's corona is only visible during an eclipse. The Sun's corona is the outermost layer of its atmosphere, extending millions of kilometers into space. It is visible during a solar eclipse as a faint, pearly-white halo surrounding the darkened disk of the Sun.
