Add Yahoo as a preferred source to see more of our stories on Google. Air traffic controller 'left work early' before deadly crash as helicopter's flight height comes into question A supervisor ...

A study, led by the first winner of the inaugural Carol Ellison Science Award 2021, has determined the optimum height for a drone to fly and target desert locusts with biopesticides in order for it be ...

According to bird experts Kenn and Kimberly Kaufman, much about bird flying is dependent on the species, season, and what else the bird is doing. Songbirds that feed on insects vary in the elevation ...