| Subject | Datestamp | Replies | Score | |||
|---|---|---|---|---|---|---|
| Ion engines | ||||||
| attached to Ion Engine Propels Probe to Moon | ||||||
A computer scientist is someone who fixes things that aren't broken.
| Subject | Datestamp | Replies | Score | |||
|---|---|---|---|---|---|---|
| Ion engines | ||||||
| attached to Ion Engine Propels Probe to Moon | ||||||
A computer scientist is someone who fixes things that aren't broken.