How does farming work

Just 'use' it anywhere. The Energy Dash blueprint you have is a type of tech that gets added to the Tech station on-board the ship. Once you've unlocked tech, go to the tech station on your ship, select a tech on the left, then click one of the "lock-in" buttons on the right to equip that tech.

I don't think it tells you how to use it, but the Energy Dash is used by double tapping left or right for whichever direction you want to dash in.

When using other blueprints, such as furniture or weapons, a little pop-up at the bottom of the screen will say "Learned to craft new item" confirming usage. The recipe will then be available for crafting at the crafting station used to make that particular item.

As of 1.0 stable, the Threat Level of a planet is directly related to the planetary biome of planet, not the character. The biome of a planet can be identified by the highlighted keywords in its description, while their threat level is identified by the "Threat" keyword.

• Tier 1 - Low - Iron - Barren¹, Asteroid Field, Lush
• Tier 2 - Moderate - Tungsten - Desert, Forest
• Tier 3 - Risky - Titanium - Ocean, Snow, Dry Grassland
• Tier 4 - Dangerous - Durasteel - Mutated, Jungle, Toxic
• Tier 5 - Extreme - Aegisalt, Ferozium, Violium - Frozen, Dark, Frigid Ocean
• Tier 6 - Inconceivable - Solarium - Magma, Volcanic, Scotched

¹ Barren planets do not have any ores on them
² All planets also have coal, copper, silver, gold, core fragment and diamond ores. These are not used as the primary material for most weapons and armor.

All enemies receive a damage multiplier based on the thread level of the planet they're on, so the same enemy species on a Scotched planet (Inconceivable threat) will do significantly more damage than one on a Lush planet (Low threat). Higher threat level planets will also require more EPP upgrades as their environments are less hospitable.

Planets with higher threat level contains higher tiered ores, inclusive of all lower tiered once - eg. a Mutated planet (Dangerous threat) will have Iron, Tungsten, Titanium and Durasteel ore. In general, you need the previous tier's armor and weaponry to explore planets of the next threat level, thus creating a natural progression system, not unlike that of Terraria.