No, light travels at the same speed in all directions in a vacuum, which is approximately 299,792,458 meters per second (or about 186,282 miles per second). This speed is commonly denoted as "c" and is considered to be a fundamental constant of nature. According to Einstein's theory of relativity, the speed of light is an upper limit for the velocity of any object with mass. Therefore, regardless of the direction in which light travels, its speed remains constant.