Tag Archives: history

From mapping a continent to surveying the Universe

SIDING SPRING MOUNTAIN’ IS HOME TO OVER A DOZEN AUSTRALIAN AND INTERNATIONAL TELESCOPES. CREDIT: FRED KAMPHUES.
SIDING SPRING MOUNTAIN’ IS HOME TO OVER A DOZEN AUSTRALIAN AND INTERNATIONAL TELESCOPES. CREDIT: FRED KAMPHUES.

Australia’s first observatory was built on the shores of Sydney Harbour by Lieutenant William Dawes of the First Fleet, on the point where the southern pylon of the Sydney Harbour Bridge now stands. Optical astronomy was essential for maritime navigation, and for providing precise location measurements for surveying the new continent.

The country’s first major observatory was established in 1821 at Parramatta by Thomas Brisbane, Governor of New South Wales and, later, President of the Royal Society. The observatory was used to discover and record the galaxy NGC 5128—a now much-studied galaxy that radio astronomers know as Centaurus A, within which sits a super-massive black hole (see Recording the impact of a super-massive black hole). Continue reading From mapping a continent to surveying the Universe

Lake Mungo reveals ancient human adaptation to climate change

Lake Mungo’s ancient landscape.
Lake Mungo’s ancient landscape.

Aboriginal Elders from the Traditional Tribal Groups in the Willandra Lakes World Heritage Area are collaborating with researchers to produce the first integrated account of the history of human settlement, landscape evolution and past environmental change for Australia’s foremost ‘Ice Age’ archive.

Continue reading Lake Mungo reveals ancient human adaptation to climate change

Reading the hidden clock in a grain of sand

Zenobia Jacobs, University of Wollongong. Credit: timothyburgess.net
Zenobia Jacobs, University of Wollongong. Credit: timothyburgess.net

Dr Zenobia Jacobs wants to know where we came from, and how we got here. When did our distant ancestors leave Africa and spread across the world? Why? And when was Australia first settled?

Continue reading Reading the hidden clock in a grain of sand