inner part of the Earth's shadow (umbra) begins covering the Moon Total eclipse begins: Also called totality, this occurs when the umbra completely covers the Moon, turning it a reddish brown ...
Umbra: The darker, central part of the Earth's shadow Because the Moon is far away from Earth relatively speaking - its orbit is an ellipse, so it moves closer and further and looks larger and ...
The Moon's deep shadow, or umbra, will then race across the Earth's surface at more than 2,500km/h (1,500mph), crossing the Mexican coast at 11:07 MST (18:07 GMT) and the Rio Grande border between ...
called ETV-A1—captured multiple views of the moon’s umbra, its dark central shadow, as it traveled 9,200 miles across the Earth’s surface in three hours and 17 minutes. That dark shadow is ...