How do astronomers know how far away stars are? Unfortunately, it’s not a short and easy answer.

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 light ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. When you look at an object that's very distant from you, how well can ...

Over the many years I’ve been writing this column, I've rattled off the distances to many celestial objects. I don't often ...

In the 15-plus year history of this starry column in the Pioneer Press, I’ve rattled off distances to many stars and galaxies. The distances are so far that the miles are too cumbersome to express.