[skandinaff]

we would also need a transmitter of equivalent size to send those images back. also an energy source

[NL807]

Honestly even if they are size of a jellybean, it would be a massive boon for space exploration. Just imagine sending them for reconnaissance work around the solar system to check out potential bodies to explore for bigger probes later down the track. Even to catch interesting objects suddenly appearing with minimal delay, like ʻOumuamua.

[Workaccount2]

Just do round trip!

[sangnoir]

We'll need even bigger[1] breakthroughs in propulsion if it's going to be self-propelling itself back to Sol at relativistic speeds.

1. A "simpler" sci-fi solution foe a 1-way trip that's still out of our reach is a large light sail and huge Earth-based laser, but his required "smaller" breakthroughs in material science