Appliance of science to the universe

Naomi Lavelle takes us to infinity and beyond with these great questions about the universe sent in by Francis.

If we travel at the speed of light can the end of the universe be reached and how long would it take?

When we talk about the universe we are referring to the observable universe, the part that we can ‘see’. It has a horizon of sorts, from our point of observation and it is called the cosmic light horizon. It is approximately 46 billion light years away. This calculation is based on us being the centre of the universe (which we are not) and is restrained by the shape of the universe (of which we are unsure).