| Ad Astra 1999 |
| Title | Subject | Authors |
| 1999 International Space Development Conference. | Astronomy | Joe Rauscher |
| 1999 space policy survey. | Astronomy | Adam Herringa, Miles Swanson |
| A commercial shuttle payload: the SPACEHAB experience.(commercial space services provider for manned/unmanned payloads) | Astronomy | Shelley A. Harrison |
| An alliance to rescue civilization: a bold proposal for Earth's future. | Astronomy | Robert Shapiro, William E. Burrows |
| A new century in space.(space exploration) | Astronomy | Chris Pancratz |
| A new initiative for a new millenium.(Mars Millenium project) | Astronomy | Anne Pierce |
| Astrobiology 101: exploring the living universe.(Cover Story) | Astronomy | Keith Cowing, Mitchell K. Hobish |
| Australia's space activities bill: charting a path for spaceports and launchers.(includes related article on overview of Australian space legislation) | Astronomy | Morris Jones |
| Brazil reaches toward space.(space exploration) | Astronomy | Frank Dirceu Braun |
| Bring back the space council.(space policy)(Editorial) | Astronomy | Pat Dasch |
| Bring 'em back alive or at least carefully.(extraterrestrial samples) | Astronomy | Margaret S. Race, John D. Rummel |
| Business and government in space: a new century needs a new appraisal.(Special Issue: National Space Society: 25 Years, Ad Astra Magazine: 10 Years) | Astronomy | Simon Mansfield |
| Center for Lunar Research: an update. | Astronomy | Adam Herringa |
| Colonel Eileen Collins in Washington.(astronaut) | Astronomy | Allison Frazier |
| Commercializing the moon: don't wait for Apollo 2. | Astronomy | Wendell W. Mendell |
| Dawn of the microrocket: a space technology of the small. | Astronomy | James R. Riordon |
| Earth is a planet, too! | Astronomy | Mitchell K. Hobish |
| Ex astra: life from the stars. | Astronomy | Michael Leverson Meyer |
| Financial space: the space stock surfers. | Astronomy | B. Alexander Howerton |
| Gagarin's legacy: a tour of the Yuri Gagarin Cosmonaut Training Center Museum in Star City, Russia. | Astronomy | Robert Z. Pearlman |
| Hard knocks in Washington and dreams in Amsterdam.(Amsterdam, Holland, space policy)(Column) | Astronomy | Pat Dasch |
| Idaho pursues a spaceport. | Astronomy | Richard P. Terra |
| International space station launch manifest. | Astronomy | James Gauthier |
| It's dead Jim. But was it ever alive?(a study of the signs of fossilized life found in the Martian meteorite ALH84001) | Astronomy | David S. McKay, Everett K. Gibson Jr., Kathie Thomas-Keprta, Frances Westall, Christopher A. Romanek |
| Keep your faith in space: a message to the next generation of rocket boys and girls.(Special Issue: National Space Society: 25 Years, Ad Astra Magazine: 10 Years) | Astronomy | Homer H. Hickam Jr. |
| Life support in space. | Astronomy | James R. Riordon |
| Lunar Base Development symposium cited as innovative action on the eve of Apollo 11 anniversary. | Astronomy | Joe Rauscher |
| Making space work.(High Altitude Research Corp.'s low-cost access to space) | Astronomy | Greg Allison, Wade Dorland |
| NASA'a roller coaster into space: flying with the Reduced Gravity Program Students. | Astronomy | Marianne J. Dyson |
| NASA scared by not scarred by Hurricane Floyd. | Astronomy | Jim Banks |
| National Space Society's 1999 Chapter Awards. | Astronomy | Greg Allison |
| Opening the doorway to space.(government-funded space exploration) | Astronomy | Kirby Ikin |
| Project Moonlink. | Astronomy | Dana M. Barry |
| Robots vs. humans in space: both will be required. | Astronomy | Greg Schmidt, Mike Hawes |
| Satellite communications in the 21st century.(Special Issue: National Space Society: 25 Years, Ad Astra Magazine: 10 Years) | Astronomy | Steven D. Dorfman |
| Scientists leap at NEAP opportunity, NASA to support mission.(SpaceDev's planned Near Earth Asteroid Prospector mission) | Astronomy | |
| Space events down under: the 49th International Astronautical Congress.(Melbourne, Australia, 1998) | Astronomy | Frederick I. Ordway III |
| Space in the 21st century: a vision of the future.(Special Issue: National Space Society: 25 Years, Ad Astra Magazine: 10 Years)(space as economic and social frontier) | Astronomy | Kirby Ikin |
| Speeding through the solar system. | Astronomy | Terry Kammash |
| Starting with the sun: an interview with Frank White.(author on space exploration) | Astronomy | George Smith |
| The coming nanospace revolution.(satellites) | Astronomy | Rick Fleeter |
| The commercial space act: space entrepreneurs get some federal help.(includes related article on the provisions of the law)(Commercial Space Act of 1998) | Astronomy | Dee Ann Divis |
| The engineering of dreams: the future of commercial space. | Astronomy | Maxwell Hunter |
| The evolution of commercial space (2). | Astronomy | Frank A. DiBello |
| The evolution of space transportation. | Astronomy | |
| The search for extremophiles on Earth and beyond.(lifeforms capable of living in extreme environmental conditions) | Astronomy | Penny Boston |
| The winds are still asleep.(Special Issue: National Space Society: 25 Years, Ad Astra Magazine: 10 Years)(space in the 22nd century) | Astronomy | Neil Ruzic |
| Think Mars: a business plan for human Mars exploration. | Astronomy | Vanessa Thomas |
| UNISPACE III: making space policy in Vienna.(Vienna, Austria, Third United Nations Conference on the Peaceful Uses of Outer Space, 1999) | Astronomy | Amanda Moore |
| Von Braun's lunar shuttle: a science fiction "fact.".(part 2 of 3) | Astronomy | Frederick I. Ordway III |
| Welcome to our new President!(former NASA Space Shuttle astronaut Daniel C. Brandenstein) | Astronomy | |
| What I learned in space: a space shuttle commander's view. | Astronomy | Daniel Brandenstein |
| What's working in space: a microgravity status report. | Astronomy | Nick Proach |
| What they did to John Glenn: an overview of STS-95 experiments. | Astronomy | Irene Brown |
| Working the high frontier. | Astronomy | Frank Jr. Sietzen |
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