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Reviews & Analysis

Authoritative reviews, perspectives and analyses of the state of a field.

3 articles

Review Article Open access

Active matter: from bacterial swarms to robot collectives

Systems made of self-propelled units—from cells to robots—obey shared physical principles that are only now coming into focus.

Aisha Ivanova, Leila Kim … Priya Raman

Lumen 3, 21–30 (2026)

Perspective Open access

Towards a global observing system for soil carbon

Soils hold more carbon than plants and the atmosphere combined, yet we lack the means to measure how that store is changing. It is time to build them.

Elena Patel, Anders Becker … Tomasz Mensah

Lumen 3, 129–138 (2026)