#CosmicComposition
The most common element in the universe is hydrogen, making up about 75% of its normal matter. Helium is the second most abundant, comprising about 24%. All the heavier elements were forged in stars. #CosmicComposition #Hydrogen #Cosmology
September 2, 2025 at 3:00 PM
4/8 Of this cosmic total, normal matter accounts for just 100 zetta-suns, mostly hydrogen (75%) and helium (25%) formed immediately after the big bang.

✨ All other elements—including those that make up our bodies—are essentially a cosmic rounding error.
#CosmicComposition #ElementDistribution
March 20, 2025 at 8:55 PM
Astronomy Picture from 30/10/2009

The Bubble and M52

Source: https://apod.nasa.gov/apod/ap091030.htm<a href="/hashtag/BubbleNebula" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#BubbleNebulal#M52u#OpenStarClusterr#CosmicCompositionp#Astrophotographyt#Nebula #Starsa#DeepSpacee#Spacee#Astronomys#Cassiopeias#NGC7635##SpaceBeautyc#Stargazingargazing
March 11, 2025 at 2:14 PM