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Research path to Planetary Resurfacing

Planetary Resurfacing (tier 2 society) needs New Worlds Protocol, 2 technologies in all; the path costs 2,500 base research (1 to research, starting technologies free). Opening the tiers on the way takes 6 more technologies (6,500), so the whole climb is about 9,000.

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In research order
TechnologyAreaTierBase cost
Planetary ResurfacingSociety22500
Also needed to open the tiers (the cheapest open to every empire; any others of the same tier and area do)
TechnologyAreaTierBase cost
Doctrine: Space CombatSociety11000
Eco SimulationSociety11000
Living Test SubjectsSociety11000
Societal UnificationSociety11000
Adaptive BureaucracySociety11250
Climate Control NetworkSociety11250

How it is worked out

From Stellaris Cygnus v4.5.2 (9776), read from the game files by StellarisDB (unofficial, not affiliated with Paradox Interactive). Same rules as the tool on the site. JSON: add format=json. All tools: https://stellarisdb.com/calc