When the moon’s orbit around Earth lines up on the same plane as Earth’s orbit around the sun, its shadow is cast across the planet. (NASA’s Goddard Space Flight Center/Genna Duberstein)
Home When the moon’s orbit around Earth lines up on the same plane as Earth’s orbit around the sun, its shadow is cast across the planet. (NASA’s Goddard Space Flight Center/Genna Duberstein) When the moon’s orbit around Earth lines up on the same plane as Earth’s orbit around the sun, its shadow is cast across the planet. (NASA's Goddard Space Flight Center/Genna Duberstein)