- 2. Small probes would give the allied armies some combat experience before the main battle started.
- 3. Its rings were discovered by telescope from Earth, but space probes later found that spectacular rings surround some other planets.
- 4. The Pioneer probes have on board ultra-violet instruments which are measuring light that we can't measure on the earth.
- Processes and Resources of the Bering Sea Shelf
- prototype receiver and optical bus evaluation system