Tag Archives: physics

Have We Ever Received Radio Signals From Space?

Question:  Hello I was wondering have we ever received any radio signals from space? What I’m trying to ask has earth ever received a message from space?  – Brandon Answer:  Well, in fact, all objects in the universe that emit … Continue reading

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Is Kepler’s Second Law Wrong?

Question:  I am suspicious about Kepler’s area law.  Such law should not exist.  I am finding “the cycling velocity of the celestial body is constant and not the swept out area”.  How to prove that area 1/2*r*Vp=constant?  In addition I … Continue reading

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What is the Difference Between the Redness of an Object and its Redshift?

Question:  What is the difference between Doppler shift of light and Natural light spectra (blue for young and red for old) with respect to stars and galaxies? How does astronomers differentiate between Doppler shift and Natural light spectra of deep … Continue reading

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The Earth-Moon Spin-Orbit Resonance

Question:  For being a chunk of Earth’s primordial matter the Moon is quite an amazing stellar feat…it orbits synchronously about the earth with an axis spin velocity 1/100 that of Earth and counterclockwise orbit equal in period as that of … Continue reading

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Is There a Preferred Direction of Rotation for Objects in the Universe?

Question:  I would think that rotation direction of astro objects, Galaxies, Planets around sun, etc would average out between clockwise and counter clockwise.  Is this what we see or does the Universe prefer one over the other and if so … Continue reading

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