sun

2 articles · All tags

• Why Does the Moon Have Phases? A Plain Explanation
  The Moon has phases because the Sun always lights half of it, and our view of that lit half changes as the Moon orbits Earth every 29.5 days, not Earth's shadow.
• Solar Eclipses: How They Work and Why Totality Is Rare
  A solar eclipse happens when the Moon passes between Earth and the Sun. Learn the types, why totality is rare, the Saros cycle, and how to watch one safely.