NASA asks for public's help with nationwide eclipse experiment

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These are relatively rare because the sun, moon, and Earth have to line up very precisely to make an eclipse visible in this part of the world.

During the total solar eclipse on august 21, skywatchers will direct most of their attention to the sun, but don't forget about the moon: Its slow progress away from Earth means these celestial events won't keep happening forever.

The scientists will examine whether waves move toward or away from the surface of the sun, and measure the strength and size of the waves, the report said.

Snag this cool solar eclipse gym tank in everything from a t-shirt to a hoodie, even a baby onesie for baby's first total solar eclipse celebrations. The total solar eclipse will start sharp at 1:17 p.m.

The state will not experience another solar eclipse on this scale until 2045, CPUC says.

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And everyone heading out to catch a view of the eclipse should proceed with caution: It's unsafe to look directly at the sun during an eclipse (except during totality). Once this happens, the moon blocks out the sun and casts two shadows on Earth.

To help ensure that you're in the right spot at the right time, NASA provided an interactive map for each of the 11 states that the eclipse will be passing through, and the space agency includes the essential detail of time.

The eclipse will last for 2 minutes 40 seconds and the lunar shadow will be 115 kilometers in width.

"With this new visualization, we can represent the umbral shadow with more accuracy by accounting for the influence of elevation at different points on Earth, as well as the way light rays stream through lunar valleys along the moon's ragged edge", Ernie Wright, a NASA visualizer at Goddard, said in the statement.

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