The 405-month eclipse table had emerged from a lunar calendar in which the 260-day divinatory calendar commensurated the lunar cycle,” the authors wrote.

Not sure what to do for your child’s next at-home science lesson? NASA has you covered. NASA’s Jet Propulsion Laboratory at the California Institute of Technology is offering an educational project ...

This is Part II of calendar calculator William Dam’s story. Click here to read Part I. Dam first caught on to his son’s talents in August. In the car, William asked his dad what day he had gone to his ...

Here's what's not going to happen this year: the earth won't end on Dec. 12; it won't be swallowed by a black hole, consumed by the sun or get taken out by a collision with the imaginary planet Nibiru ...