light-sail
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Kevin Parkin on Thermal Rockets, Inference Engines, and Light Sails |
|
1 | 229 | 28 October 2023 |
| Research Programs Arising from 'Oumuamua Considered as an Alien Craft |
|
2 | 363 | 28 November 2021 |