7967 20260213164156.0 10.1103/cv8n-mshc DOI SCART-2026-0117 Keppens, Willem Exploring student estimates of astronomical scales: Impact of question formulation and visualization. 2025 NO De Cock, Mieke Van Winckel, Hans Van Dooren, Wim Sermeus, Jan PHYSICAL REVIEW PHYSICS EDUCATION RESEARCH 21 2025 1 jan.sermeus@ksb-orb.be 5823379 http://publi2-as.oma.be/record/7967/files/2025_Keppens_distance_question_formulation.pdf 3309 http://publi2-as.oma.be/record/7967/files/2025_Keppens_distance_question_formulation.gif?subformat=icon icon 6079 http://publi2-as.oma.be/record/7967/files/2025_Keppens_distance_question_formulation.jpg?subformat=icon-180 icon-180 published in REFERD