The First Discovery
Ultra rare0.6%ObjectiveOptionalAnywhere
Use the Probe Scanner to find one of the mysterious Vintage Probes.
Unlock the Probe Scanner (4,000 bytes; printed on your backpack from 1 Steel), stick it in a widget slot and activate it with its hotkey. It runs for about 15 seconds, pinging and pointing - the more lights, the closer you are. Probes favour rough, mountainous terrain, so sweep by buggy rather than on foot.
When you reach the Vintage Probe, slot the scanner into it to claim it (you get a new palette for your trouble). First probe pops this; doing all seven planets' probes leads to The Wanderer's Way.