| Review of Active Space Debris Removal Methods | 2019/02/01 | English | 124 |
| A review of applications of satellite earth observation data for global societal benefit and stewardship of planet earth | 2016/05/01 | English | 50 |
| The value of information: Measuring the contribution of space-derived earth science data to resource management | 2006/11/01 | English | 44 |
| The Global Earth Observation System of Systems: Science Serving Society | 2006/02/01 | English | 38 |
| Columbia and Challenger: organizational failure at NASA | 2003/11/01 | English | 37 |
| Establishing lunar resource viability | 2016/08/01 | English | 35 |
| A Planetary Park system for Mars | 2004/11/01 | English | 34 |
| Open data policies and satellite Earth observation | 2015/05/01 | English | 34 |
| Earth observation from space – The issue of environmental sustainability | 2013/11/01 | English | 30 |
| The scientific case for renewed human activities on the Moon | 2004/05/01 | English | 29 |
| Microwave processing of lunar soil for supporting longer-term surface exploration on the Moon | 2016/08/01 | English | 29 |
| Charting the evolution of satellite programs in developing countries – The Space Technology Ladder | 2012/02/01 | English | 29 |
| The ethics of treading on Neil Armstrong's footprints | 2004/11/01 | English | 27 |
| Taking a common-pool resources approach to space sustainability: A framework and potential policies | 2012/08/01 | English | 26 |
| The long-term scientific benefits of a space economy | 2016/08/01 | English | 26 |
| Human space exploration and human spaceflight: Latency and the cognitive scale of the universe | 2011/05/01 | English | 25 |
| Is there a need for an African space agency? | 2012/08/01 | English | 25 |
| Space policy responsiveness: The relationship between public opinion and NASA funding | 2011/11/01 | English | 24 |
| Planetary parks—formulating a wilderness policy for planetary bodies | 2006/11/01 | English | 24 |
| Space development and space science together, an historic opportunity | 2016/08/01 | English | 23 |
| Who’s supporting space activities? An ‘issue public’ for US space policy | 2011/11/01 | English | 23 |
| Outcome-driven open innovation at NASA | 2015/11/01 | English | 22 |
| Cost–benefit analysis of space exploration: Some ethical considerations | 2009/05/01 | English | 21 |
| The Economic Impacts of the Commercial Space Industry | 2019/02/01 | English | 21 |
| Issues in planetary protection: policy, protocol and implementation | 2004/02/01 | English | 21 |
| Extraterrestrial environmental impact assessments – A foreseeable prerequisite for wise decisions regarding outer space exploration, research and development | 2014/11/01 | English | 19 |
| The benefits and harm of transmitting into space | 2013/02/01 | English | 19 |
| Space, the Public, and Politics | 2017/08/01 | English | 18 |
| The decision to develop the Space Shuttle | 1986/05/01 | English | 18 |
| Space tourism, private spaceflight and the law: Key aspects | 2011/08/01 | English | 17 |