# How Fast Does Light Travel in Space?

Light travels at a speed of about 299,792,458 metres per second. Light travels at the same speed through different mediums.

## How Fast Does the International Space Station Travel?

The ISS or International space station travels at an average speed of about 27,700 km per hour. It makes 15.77 orbits around the Earth per day.

## How Fast Does Light Travel in Mph?

Light travels at a speed of about 670 616 629 miles per hour. In UK standard units the speed of light is about 299,792,458 metres per second.

## Does light have mass If so, then how can it travel at the speed of light Doesn't the mass of an object (particle) approach infinity as its velocity approaches the speed of light?

Light has precisely zero mass and that makes all the difference. You're right that taking a massive particle up to the speed of light is impossible because doing so would, in a certain sense, give ...
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