Early this morning, I watched the total eclipse of the Moon from my observatory in Tucson, Arizona. Yesterday (Monday, March 2) was mostly clear with a cerulean blue sky throughout, a high temperature ...

A solar eclipse or a lunar eclipse occurs when the Sun, Earth, Moon, and the lunar nodes align. This phenomenon takes place twice a year during eclipse season. Video created with Blender 2.76 Music: ...

An underwater observatory recently detected a startlingly energetic cosmic neutrino. One possible cause involves a phenomenon that so far exists only in theory. By Dennis Overbye The agency’s leader ...

Voracious supermassive black holes light up the cores of “active” galaxies across the universe. How we see them, however, is a matter of perspective ...