"You have probably used space at least 20 times today. Satellites let you buy a coffee with your phone, book a rideshare, navigate your way to meet someone, and check the weather.Satellites are also essential for monitoring floods, cyclones and bushfires, and supporting the people they affect. Farmers depend on satellite data, too, as does everyone trying to understand and tackle climate change, not to mention our military.Yet Australia’s access to space services depends almost entirely on satellites owned and run by foreign governments and companies. In an increasingly uncertain world, having our own sovereign space technology is becoming even more important for security.But what exactly do we need to secure? And how can space help us do it? My colleagues and I at the Australian Centre for Space Governance have thought through these questions and presented them in a policy paper series – and we have some recommendations for the government"