No Images? Click here 12 SEPTEMBERSeptember 11 rememberedAmericans looked back on the September 11 attacks Tuesday with solemn ceremonies, volunteer service and a presidential tribute to "the moment when America fought back". Thousands of 9/11 victims' relatives, survivors and rescuers gathered at the memorial plaza where the World Trade Center's twin towers once stood, commemorating the deadliest terror attack on US soil. US President Donald Trump and First Lady Melania Trump visited a memorial honouring the passengers who brought down United Airlines Flight 93 into an unpopulated field in Pennsylvania. "America's future is not written by our enemies. America's future is written by our heroes," Trump said. "As long as this monument stands, as long as this memorial endures, brave patriots will rise up in America's hours of need and they, too, will fight back." ![]() NEWS WRAPTen years since the collapse
![]() It's tremendously big and tremendously wet. President Donald Trump describes Hurricane Florence ![]() ANALYSISCan Australia be a space janitor?Jessica Bi While the democratisation of space has had undeniable benefits, the rate of sending new satellites into orbit is overwhelming our ability to manage them. The US military is tracking around 18,000 space objects, but there are an estimated 170 million objects smaller than 1cm that are impossible to track. The ultimate danger of all of this space junk is collision. According to the well-known Kessler syndrome, two objects colliding will generate more debris, leading to a cascading cycle of never-ending collisions and further debris. In this hypothetical but catastrophic scenario, we would lose all assets in space, such as communications satellites, and new launches would be impossible. Space junk is a real security threat: in 2017, the US military logged 308,984 potential collisions, and 655 of those were “emergency-reportable”, says Diana McKissock of the US Air Force. This is why the United States is prioritising space junk management. In June 2018, President Trump signed a space policy directive which urged the United States to lead space traffic management, shifting responsibility of space tracking to the Department of Commerce as a reflection of growing private sector interests. The House Science Committee approved a bill appropriating millions of dollars for the creation of a situational space awareness program to manage space junk. As the commercial space market matures, the United States is clearly intent on protecting their increasingly vulnerable space assets. Australia’s population, resources and government are considerably smaller than the United States, but its geographic and comparative advantages brings significant opportunities to further develop its niche expertise and benefit from US collaboration on this issue. The most distinct advantage is in Australia’s clear weather and vast land to place ground stations to maintain knowledge of where objects are in space and their behaviour, also known as Space Situational Awareness (SSA). Australia’s technical capability for SSA is already well-established, with space object tracking via laser technology at the Mount Stromlo Observatory as well as a joint Australia-US ground space station in Exmouth, WA which employs a sophisticated radar facility. Australia’s capability is only growing: Curtin University and Lockheed Martin Space are collaborating on a potentially “disruptive” satellite tracking project using meteorite tracking technology. Curtin University is also working with an Adelaide space start-up to develop satellite tracking technology using existing radio waves. Evidently, the United States is already collaborating with Australia on SSA. The space surveillance sensors in Exmouth are in fact operated with the US Air Force, which relocated their radars from New Mexico to WA in 2014. Existing cooperation gives a good foundation to consolidate the Australia-US partnership and to develop a more advanced SSA program. As the recent USSC report “Space for Growth” suggested, close US-Australian cooperation is in both of their interests: Australia gains access to technology and support from the major global space power and the United States can better maintain its dominance against rising space powers. While today’s commercial space industry brings immense opportunities, it also adds urgency to the space junk problem. Managing space junk is in the interest of all parties – space companies must protect their own assets as they launch more satellites into space and big powers like the United States are stepping up to the ‘Space Cop’ role. Australia evidently has the niche but crucial capabilities for solving the unavoidable space junk problem, making it more important than ever to leverage Australia’s advantages and establish greater partnerships with the United States and other space companies. DIARYThe week ahead
![]() EVENTFilm screening: All the President's MenThe United States Studies Centre will host a special screening of Alan J. Pakula’s acclaimed 1976 political thriller, All the President’s Men. Visiting Fellow Stephen Loosley AM (whose expertise combines presidential politics and Hollywood history) will host an audience discussion following the film, addressing the enduring relevance of the questions about presidential overreach that the film raises. All the President's Men was nominated for eight Academy Awards and has become the gold standard for films that highlight the role of the press in American democracy. The film is based on the non-fiction book of the same name that follows journalists Carl Bernstein and Bob Woodward as they conduct the famous Watergate investigation for The Washington Post that eventually brought down the Nixon Presidency. The Watergate scandal and the film itself have been frequently compared to the ongoing investigation into the Trump campaign’s alleged collusion with Russia and the limits of presidential power. All of this will make for a lively discussion following the film. Ticket includes the film, discussion and refreshments. DATE & TIME LOCATION COST Manage your email preferences | Forward this email to a friend United States Studies Centre |