Maybe you've heard about eclipse thats its been so talked these days for these who dont know whats eclipse is. :
A solar eclipse is probably the most spectacular celestial event that people can experience. The Moon slowly turns broad daylight into night as it glides in front of the Sun, hiding it from view. If the eclipse is total, at mid- eclipse, the Sun has completely vanished, but its ephemeral corona surrounds the blackened Moon like a crown.
A solar eclipse occurs when the Moon comes between the Earth and the Sun, and casts its shadow on the Earth. For obvious reasons, an eclipse of the Sun can happen only when
the Moon is new, and thus lies on the Sun-side of the Earth. If the Moon's orbit lay in the same plane as that of the Earth, there would be an eclipse every month. However, because the lunar orbit is tilted at an angle of about five degrees, most times the New Moon passes unseen either above or below the Sun in the sky and no eclipse is seen on Earth.
This phenomen its going to happen with 20 March , 2015 (Tomorrow)
as NASA confirmed.
i think only God knows when this will happen.
Good luck.