Over the 25 years I’ve written this column, I’ve often marveled at the mind-boggling distances to many celestial objects. Astronomers don’t often use miles to express stellar and galactic distances ...

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 ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. How far away are the most distant objects in the Universe? How has the ...

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 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The parsec is one of the most commonly used distance measurements in astronomy — even more so ...

Actual experimental results demonstrate the promise of a glasses-free 3-D theater experience. Two cars, one red and one blue, are projected onto a screen through a parallax barrier. As the light ...

A zoomed-in view of the eruption, taken by Japan’s Himawari-8 satellite at 05:40 UTC on 15 January 2022, about 100 minutes after the eruption started. Photo credit: Simon Proud / Uni Oxford, RALSpace ...