A paper links dark stars to Webb telescope puzzles involving bright sources, dust-free galaxies, and early black holes.

Spectral types and Hγ (W Hγ) equivalent widths have been derived from low dispersion (92 Å/mm and 51 Å/mm) spectrograms of the brightest stars in NGC 281, NGC 1893 (Aur OB 2), NGC 6823 (Vul OB 1), NGC ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. Without a doubt, one of the most exciting prospects in all of science ...

The James Webb Space Telescope is now delivering what astronomers have chased for decades: a glimpse of the universe’s first generation of stars. By dissecting the light from a tiny, distant galaxy, ...

This month, we’ll talk about the relationship between a star’s spectral class and its color. But first, I have a question for you: Which constellation has the most stars of spectral class K9? The ...

A team of astronomers have created the first standardized set of measurement guidelines for analyzing and cataloguing stars. Previously, as with the longitude problem 300 years earlier for fixing ...

II. A SERIES of observations such as ours ought to add at least a little to our knowledge of the development by which the spectra of stars pass from the second class to one of the two sections of the ...