On Monday, April 8, a total solar eclipse will be visible across a swath of North America, from Mexico’s Pacific coast to the easternmost reaches of Canada. And in those few minutes of daytime darkness, all sorts of interesting phenomena are known to occur — phenomena NASA would like our help measuring. During a total solar eclipse, temperatures may drop and winds may slow down or change their course. Animals have been observed to behave unusually — you might hear crickets start their evening... Read this story