In under 300 hours, the world-renowned CSIRO telescope in Australia surveyed the whole southern sky in amazing detail and record time, discovering 3 million previously unseen galaxies.
The feat, announced on December 1 by Australia's national
science organisation CSIRO, has swiftly made headlines throughout the world for
developing a new atlas of the universe.
According to the researchers, as many as 1 million of these
distant galaxies may be previously unknown to astronomy, and this is likely
just the beginning. Because of the success of this first study, CSIRO
scientists are already planning additional in-depth observations in the future
years.
Previous telescopic all-sky surveys of the galaxy took years
and tens of thousands of photographs to complete.
The telescope, known as the Australian Square Kilometre
Array Pathfinder (ASKAP), is a cluster of 36 radio dish antennae stretched out
over 4,000 square metres in the Western Outback that work together to stitch
together high-resolution images to create panoramic views of the universe.
According to CSIRO, the final 903 photos used to generate
the new atlas are made up of 70 billion pixels totaling 26 terabytes of data,
which is different than the resolution of your iPhone. This massive load, which
began as 13.5 "exabytes," was processed by the Pawsey Supercomputing
Center's "Galaxy" supercomputer.
“ASKAP is applying the very latest in science and technology
to age-old questions about the mysteries of the Universe and equipping
astronomers around the world with new breakthroughs to solve their challenges,”
says CSIRO Chief Executive Dr. Larry Marshall.
3 million new galaxies is a lot of ground to cover, so ASKAP
is probably only getting started.
“This census of the Universe will be used by astronomers
around the world to explore the unknown and study everything from star
formation to how galaxies and their supermassive black holes evolve and
interact,” lead author and CSIRO astronomer Dr. David McConnell said in a
statement.
He went on to say that tens of millions of galaxies could be discovered in the future with this new telescope/supercomputer combo.
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