Define etch: to produce (something, such as a pattern or design) on a hard material by eating into the material's surface (as byâ¦ â etch in a sentence to produce (something, such as a pattern or design) on a hard material by eating into the material's surface (as by acid or laser beam)â¦
This staggering image shows how our sun - which is so big it accounts for 99.86% of the mass in the solar system - would look next to the biggest star in the universe. VY Canis Majoris is so large that it is impossible to even represent the earth in this picture as it would measure less than one thousandth of a single pixel.
The Largest Star Known in the Universe -- A Red Supergiant in Death Throes. When the astronomers studied the images of the most massive cluster of stars in our galaxy, Westerlund 1, they spotted something truly unique.louds of this type are rarely found around massive stars and are even rarer around red supergiant stars such as W26, the largest known star in the Universe â this is the first ionised nebula ever discovered around such a star.