Knowledge and understanding of the interactions and properties of matter and energy. Tech-level modifies this skill tremendously.

Linked with Planetary systems, Demolition, Astronomy, Chemistry, Geology, Research, Surveying, Pilot Spacecraft, Civil engineering, communication systems, Jet packs, Mathematics (high), Life support systems, Astrogation, Xenobiology, Pharmacy, Temporal mechanics.

Obligatory:-

• Physicist
• Astrogator
• Astronomer
• Chemist
• Civil engineer
• Computer engineer
• Crystologist
• Demolisher
• Ecologist
• some engineers
• Environmental repair
• Forger
• Forensics
• Life support repair
• Life support Spacecraft
• Locksmith
• Pharmacist
• Pilot remote
• Pilot Robot Vehicle
• Planetary systems
• Refrigeration systems
• Roboticist
• Robot programmer
• Smith
• some Weapon makers

Suggested: Just about any technician or engineer and most scientists.