This is the fastest speed anything can travel in the universe. So, if a gamma-ray burst originates from a distant galaxy, it will take a very long time to reach Earth.
Here's a simple way to think about it:
* Light-year: The distance light travels in one year.
* Distance to source: If a gamma-ray burst originates from a galaxy 10 million light-years away, it will take 10 million years to reach Earth.
Keep in mind that gamma-ray bursts are incredibly powerful events, but they are also extremely rare. The odds of a gamma-ray burst directly hitting Earth are very, very low.
