Shrink to See: Alvar Alloy 30 and the Race for 10-Picometer Space Stability

In this episode we explore Alvar Alloy 30, a titanium-based material that contracts when heated, and how NASA’s hunt for ultra-stable exoplanet observations is driving a leap in materials science. We'll unpack the science of negative thermal expansion, how Alvar Alloy 30 is used to cancel ordinary expansion in precision optics, the groundbreaking 11 pm/√Hz stability demonstrated in a hexapod experiment, and what this could mean for the future of space telescopes and commercial applications alike.

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