And because sensors beneath the fibers can sense when any given blade's light is obscured, referees can track the footsteps of a player to determine if he was in-bounds or not.

FORBES: Magazine Article

However, it remains very difficult to determine when exactly these stars were born or much else about them, since their faraway light is largely obscured by closer sources.

MSN: We could soon detect the first stars in our universe

The thousands of stars once visible to the naked eye are now obscured by the glare of industrial light and the haze of pollution.

FORBES: Magazine Article