The universe is vast, beyond what we can truly comprehend. But how big is it, really? In this video, we explore the incredible size of the universe, from its observable limits to the theories that ...

The part of the Universe we can observe appears perfectly flat: this implies, among other things, that going straight ahead ...

The following is an extract from our Lost in Space-Time newsletter. Each month, we hand over the keyboard to a physicist or mathematician to tell you about fascinating ideas from their corner of the ...

Scientists have gathered a lot of evidence and information about the Universe. They have used their observations to develop a model called the Big Bang to help explain its formation and evolution. The ...