Butterflies have good eyesight within 10-12 feet, but any farther, things look blurry. They also must rely on ultraviolet colors (invisible to the human eye) to find mates and the right flowers.
A study shows up to 30% of Sun-like stars may engulf planets, altering their metallicity. These "polluted" stars suggest rocky planets are destroyed during orbital decay. Ultra-short-period planets in compact systems are key to understanding this pheno
A War Was Fought Over a Bucket
Fact: The War of the Oaken Bucket (1325) was between the Italian city-states of Modena and Bologna. It started when Modena stole a wooden bucket from Bologna!
