Tracking of magnetic helicity evolution in the inner heliosphere - A radial alignment study T. Alberti, Y. Narita, L. Z. Hadid, D. Heyner, A. Milillo, C. Plainaki, H.-U. Auster and I. Richter A&A, 664 (2022) L8 Published online: 12 August 2022 DOI: 10.1051/0004-6361/202244314