What does a light-year measure? 👤 By The Quiz Wire Editorial Team 🌐 Source Astronomy Knowledge Base ✅ Fact Checked 📊 Difficulty Easy 📅 Last Updated 01 Dec 2025 A. Distance B. Brightness C. Time D. Speed Check Answer 💡 Explanation: A light-year is the distance light travels in a vacuum in one Julian year. 📚 Topics: Astronomy Science 🎯 Exams: CSS GEN NTS PMS
