There are a number of different coordinate systems that astronomers use to define the positions of objects in the…
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Meteor Size and Time of Arrival Calculation
As your 8-mile diameter meteor appears to be the same angular size as the Moon, which is about 0.5…

Can One Measure the Expansion of the Universe Within Our Solar System?
The universe is currently expanding at a rate of about 75 kilometers per second per mega-parsec. If we consider…

Does the Gravitational Pull on an Object Affect its Age?
I believe what you are referring to is one of the predictions of Einstein’s General Theory of Relativity, which…

Why Don’t Humans Get Thrown Off the Surface of the Earth Due to its Rotation?
The short answer is that the Earth’s gravity keeps us from being flung off into oblivion. To verify this,…

Do Telescopes in Space Show Us the Universe When it was Younger Than From Measurements Made From the Earth’s Surface?
Technically, yes, but the difference between the point at which a telescope in space, say in orbit around the…