| Subject | Datestamp | Replies | Score | |||
|---|---|---|---|---|---|---|
| time-of-flight differences? | ||||||
| attached to Road Trip On The Interplanetary Superhighway | ||||||
| Galactic Habitable Zones | ||||||
| attached to Milky Way Inhospitable? | ||||||
It's not so hard to lift yourself by your bootstraps once you're off the ground. -- Daniel B. Luten
