calculation articles

What is the method by which the rate of rotation of a galaxy is calculated?

Calculating the rate at which a galaxy spins is one of the most foundational measurements in astrophysics, providing dir...

What does the value of the Hubble constant help us to calculate?

The value of the Hubble constant, often denoted as $H_0$, is far more than just an abstract number derived from distant ...

How to calculate the distance of a galaxy?

Determining the distance to a galaxy is arguably one of the most fundamental and persistent challenges in astronomy. We ...