Three types of looming-selective neurons have been found in the nucleus rotundus of pigeons, each computing a different optical variable related to image expansion of objects approaching on a direct ...

Speed limits are a subject of constant discussion across America, and because of decentralized state regulation over the limits, there can be a wide variance in limits from state to state. Arizona, ...

In the sleepy predawn hours of August 30, a Ukrainian amateur astronomer named Gennady Borisov spotted a strange comet zooming through our solar system. Now, astronomers have provisionally verified ...

ʻOumuamua was the first confirmed object from another star system to pass through our solar system. Its strange shape, unusual acceleration, and lack of a visible tail left scientists divided. Since ...