➜ A Necessary Disenchantment: myth, agency and injustice in the digital age
Nick Couldry challenges some ‘digital age’ myths about how we gather on social media platforms and the value of ‘big data’, and considers the new forms of agency and injustice emerging alongside them.Recorded on 21 November 2013 in Sheikh Zayed Theatre, New Academic Building.
➜ Every year, we find 1,000 new objects in space near Earth
Right now, there are several surveys that are discovering near-Earth asteroids, and they’re supported by a network of amateur and professional astronomers who keep track of them. The most productive survey to date in terms of total number of discoveries is the Catalina Sky Survey, along with PanSTARRS and LINEAR. The community is discovering about 1000 new near-Earth objects per year of all sizes, which means there are still a lot more out there left to find. With our team’s work using the NEOWISE space-based infrared survey observations, we were able to make some estimates of how many objects are out there, and what fraction have been found. Our observations and calculations show that about 25% of near-Earth asteroids larger than 100 meters in diameter have already been discovered, and there are about 20,500 that are out there. We’d obviously like to do a more comprehensive survey, though, and that’s why we proposed NEOCam!