What is Earth’s shadow called?

[5-15-2022] Microsoft Rewards Bing Homepage Quiz Question: What is Earth’s shadow called?

The given options are:

  • Apogee
  • Corona
  • Umbra

Correct Answer: Umbra

Fact: The umbra is the innermost and darkest part of the cone-shaped shadow cast by a celestial body (in this case, the Earth). The light source is completely blocked by the umbra, causing a total eclipse. The outer and much wider part of this shadow is called the penumbra. When the moon falls behind the Earth’s penumbra, the effect is much more subtle because Earth’s shadow is much fainter at that distance. You might not even notice a penumbral eclipse as the moon becomes just a shade dimmer than normal.


Today’s “Microsoft Rewards Bing Homepage Quiz” has three questions related to the celestial phenomenon. Each question has only one correct answer and carries one point. The wrong answer does not earn any points. So, select only the correct answers.

All three questions from today’s Bing Homepage Quiz are below. You can find their answers by visiting those pages.

  1. ‘Blood moon’ is the name given to what type of celestial phenomenon?
  2. What is Earth’s shadow called?
  3. What happens when Earth falls fully behind the moon’s shadow?

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