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 ...

distance scale, as well as to research the stellar life-cycle. relationship to distance. A 100-watt light bulb one mile away looks exactly as bright as a 25-watt light bulb half a mile away. So to ...

A team of astronomers has used asteroseismology, or the study of stellar oscillations, to accurately measure the distance of stars from the Earth. Their research examined thousands of stars and ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

It’s a bit mind-bending to realise that everything we know about the scale of the universe comes from people stuck […] ...

Cepheid variable stars, pulsating stars with varying brightness and size, are crucial for determining astronomical distances, as exemplified by Edwin Hubble's Andromeda Galaxy measurement. The Leavitt ...

The distance to one of the oldest star clusters has been precisely measured by the NASA Hubble Space Telescope for the first time. This measurement provides a more accurate and independent estimate ...

(Nanowerk News) For most of us, the countless bright spots in the nighttime sky all seem to be stars. But in fact, some of those spots are actually planets, or distant suns, or even entire galaxies ...

Astronomers from the U.S. Naval Observatory (USNO), in collaboration with others from the REsearch Consortium On Nearby Stars (RECONS), have determined new distances to a group of faint young stars ...