Scientists are building a giant radio telescope, one hundred times more powerful than the strongest in the world at the moment.
It's called the Square Kilometre Array (SKA) and is one of the biggest scientific projects in history.
When it's finished it'll see further into the cosmos than ever before, to help us discover new galaxies and maybe even find alien life.
It's a project that could change what we understand about our Universe and life as we know it, forever.
The telescope is being built by some of the world's top scientists and engineers with the help of 10 countries, including the UK.
SKA won't be one massive telescope, it'll be made up of thousands of dishes and up to a million antennae, clustered together over a square kilometre.
They're being built in South Africa's Karoo region and Australia's Murchison Shire, two of the most remote places on Earth.
Newsround's Ayshah Tull travelled to South Africa to find out more...