Discover the true light year definition: a unit of distance, not time. Learn how astronomers measure cosmic distances, debunk common misconceptions, and understand why light years matter in space exploration.
Understand Earth's 23.4° axial tilt: why it causes seasons, extreme daylight variations like Midnight Sun, impacts on climate & GPS, common myths debunked, and how to observe it yourself. Expert explanation with planetary comparisons.
Discover what causes the phases of the moon with this complete astronomy guide. Learn all 8 lunar phases, debunk common myths, and explore practical applications for fishing, gardening, and photography. Includes viewing tips and FAQs.