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.
A Giant New Star is Born in the Milky Way. As best they can determine, astronomers think that the very first stars in the universe were monsters, 100 times as massive as the Sun, which burned through their nuclear fuel in just a few million years before exploding in the cataclysmic events known as supernovas.