Question: The mean solar radiation flux absorbed per unit area of Earth’s surface is calculated as FS(1-A)/4, where FS…
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If the Sun Suddenly Disappeared Would We Notice It Immediately?
Question: Hi National Radio Astronomy Observatory people! My name is Israel Romero and I am a Software Engineer. So,…
What Does the VLA See or Hear?
Question: What do the VLAs actually “see” or “hear?” A recent report states Apollo 10 astronauts “heard” strange music…
What Methods Have Scientists Used to Confirm the LIGO Discovery of Gravity Waves?
Question: Information says that the gravitational waves, recently detected by LIGO, correspond (according to Einstein theory equations) to the…
Can Radio Waves be Focused Like Visible Light?
Question: A visit to your Very Large Array prompted the question, “Can we focus radio waves much as we…
Why Do High Tides Happen Both on the Side of the Earth Facing Toward and Away from the Moon?
Question: During new moon, moon is between earth and sun. The spring tide then occurs. The height of high…