Construction starts in Australia on the world's largest radio telescope

Astronomers are now closer to a major technological upgrade. Australia has started construction of its portion of the Square Kilometer Array, a system that should become the world's largest radio telescope. The Australian portion, SKA-Low, will revolve around 131,072 antenna "trees" in the country's western Wajarri country. As the name implies, the array will focus on low-frequency signals. The Guardiannotes it's expected to be eight times more sensitive than existing telescopes, and map the cos...