Transcript

Maria Townsend:

This radio telescope can see over a thousand million million kilometres in to space. That’s a 1 followed by 15 zeroes. A very large number that is both inconvenient to read and write.

So instead of writing it like this a thousand million million can be written like this. One times 10 to the power of 15.

This is all based on powers of 10 as you’ll see this week.