physics – Page 17 – National Radio Astronomy Observatory

A Question Regarding Atmospheric Transparency Windows

The link you provided appears to no longer be active. A more general discussion regarding astronomical observations from ground-based…

Since the cosmic microwave background emits as a black body, we start with the spectral radiance of a black…

The gravitational force has a distance dependence to it that makes it decrease as you get further away from…

Even though the stars that we see in the night sky are all very far away, we can see…

Given the minimum and maximum distance of the orbit of a comet in an elliptical orbit, you can use…

The short answer is no, the speed of light that you measure locally is unchanged by gravity. In Einstein’s…

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