Dr Catherine Cesarsky, Chair of the SKA Board of Directors, added: “Rome wasn’t built in a day. Likewise, designing, building and operating the world’s biggest telescope takes decades of efforts, expertise, innovation, perseverance, and global collaboration. Today we’ve laid the foundations that will enable us to make the SKA a reality.”
The SKA will be the largest science facility on the planet, with infrastructure spread across three continents on both hemispheres. Its two networks of hundreds of dishes and thousands of antennas will be distributed over hundreds of kilometres in Australia and South Africa, with the Headquarters in the United Kingdom.
Together with facilities like the James Webb Space Telescope, CERN’s Large Hadron Collider, the LIGO gravitational wave detector, the new generation of extremely large optical telescopes and the ITER fusion reactor, the SKA will be one of humanity’s cornerstone physics machines in the 21st century.
Professor Philip Diamond, Director-General of the SKA Organisation which has led the design of the telescope added: “Like Galileo’s telescope in its time, the SKA will revolutionise how we understand the world around us and our place in it. Today’s historic signature shows a global commitment behind this vision, and opens up the door to generations of ground-breaking discoveries.”
It will help address fundamental gaps in our understanding of the Universe, enabling astronomers from its participating countries to study gravitational waves and test Einstein’s theory of relativity in extreme environments, investigate the nature of the mysterious fast radio bursts, improve our understanding of the evolution of the Universe over billions of years, map hundreds of millions of galaxies and look for signs of life in the Universe.
“South Africa is proud to be one of the countries signing the SKA Convention today. The signing of the Convention formally establishes the Intergovernmental Organisation, which is tasked with the construction and operations of the SKA. South Africa has already made significant contributions to the design of the SKA, particularly via the recently launched MeerKAT telescope, and our participation in the Intergovernmental Organisation will ensure our continued involvement in a project that will push technology boundaries, and quite possibly produce Nobel Prize-winning science,” said Dr Rob Adam, Managing Director of the South Africa Radio Astronomy Observatory.
Two of the world’s fastest supercomputers will be needed to process the unprecedented amounts of data emanating from the telescopes, with some 600 petabytes expected to be stored and distributed worldwide to the science community every year, or the equivalent of over half a million laptops worth of data.
Close to 700 million euros worth of contracts for the construction of the SKA will start to be awarded from late 2020 to companies and providers in the SKA’s member countries, providing a substantial return on investment for those countries. Spinoffs are also expected to emerge from work to design and build the SKA, with start-ups already being created out of some of the design work and impact reaching far beyond astronomy.
Over 1,000 engineers and scientists in 20 countries have been involved in designing the SKA over the past five years, with new research programmes, educational initiatives and collaborations being created in various countries to train the next generation of scientists and engineers.
Guests from Canada, France, Malta, New Zealand, the Republic of Korea, Spain and Switzerland were also in attendance to witness the signature and reaffirmed their strong interest in the project. They all confirmed they are making their best efforts to prepare the conditions for a future decision of participation of their respective country in the SKA Observatory.
The signature concludes three and a half years of negotiations by government representatives and international lawyers, and kicks off the legislative process in the signing countries, which will see SKAO enter into force once five countries including all three hosts have ratified the treaty through their respective legislatures.
SKAO becomes only the second intergovernmental organisation dedicated to astronomy in the world, after the European Southern Observatory (ESO).