The  2024 solar eclipse  will be  visible across North America  today. As the moon's position between the Earth and sun  casts a shadow  on North America, that shadow, or umbra, will travel along the surface from west to east at more than 1,500 miles per hour along the  path of totality .  That means the eclipse will start, peak and end at different times — as will the moments of total darkness along the path of totality — and the best time to view the eclipse depends on where you are located. Some  places along the path  will have more totality time than others