Extra stellar systems are so far away from our own that we couldn’t even hope of developing a tape measure long enough to determine how far away they really are. On the other hand, astronomers can ...

By measuring the tiny angle produced by this motion, astronomers can use trigonometry to determine the distance to the star. The distances to these stars are measured in parsecs, short for ...

Have you ever wondered how astronomers measure the distance to other objects in the universe? How do they make claims that this nebula is 1,500 light years distance or that galaxy is 2.5 million ...

The answer is relatively simple, and involves different techniques based on the distance to the star. Today we will discuss the first technique used by astronomers to measure the distance to ...

To calculate peculiar motion, astronomers need some independent way of measuring distance. That is where the Seven Samurai scientific group came in. They used a clever chain of reasoning.

The astronomers say that the galaxy is so far away that it defines the observable universe's boundary. Astronomers used chemical signatures to measure the distance to GN-z11.

When measuring astronomical distances, astronomers use a series of measurements they call the distance ladder. It's easiest to measure distances to close objects like neighboring planets. Then, based ...

Since they're so old, astronomers have been seeking to use them to better measure the distance to other objects as well as understand their evolution.