According to this theory, the entire Universe and time began as a point of energy called a ‘singularity’ about 13.8 billion years ago.

Why is a black hole 'black'? The answers to some favourite questions about Black Holes.

There is no single ‘Australian Aboriginal Astronomy’. As with all other areas of Indigenous Australian culture, astronomical traditions vary largely across the country, especially between different language groups.

Evidence suggests that the Solar System formed almost five billion years ago.

There are three main types of optical telescopes and these differ in the way that they collect light to form an image.