Question: If I were to build a 146 meter tall pyramid on the surface of Io, what material(s) would…
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Did Our Solar System Originally Include a Fifth Gas Giant?
Question: Read an article that researchers at the University of Toronto believe that Jupiter in the solar system early…
Do Magnetars Have Solar Systems?
Question: Do magnetars have their own solar system, and do they attract iron rich asteroids? If so do their…
Is the Motion of the Moon in the Sky Variable?
Question: Last night with the Super Moon/Eclipse the sky was clear and the moon (in the West?) seemed to…
Why is the New Horizons Spacecraft Slowing Down?
Question: Why is New Horizons slowing down? I check it on line every day and its speed is constant….
Relationship Between Planetary Orbits and Sun Rotation
Question: I was wondering about the relation between the Sun’s own rotation relative to the planets orbit around the…