Hydrogen
We see the light of main sequence stars throughout the universe. Such stars fuse hydrogen.
Hydrogen! It's the lightest of the elements, the only element whose atoms (typically) contain no neutrons, and it's the most abundant element in the universe because it's the main ingredient in stars, which make up nearly all the universe's mass (as far as we know.)
The universe comprises all matter in space. This includes a very large number (200 billion to 2 trillion) galaxies. Each galaxy comprises a very large number of stars: our contains 100 thousand million stars.
Just in our galaxy - the Milky Way - there are several hundred billion stars. In the visible Universe, there are hundreds of billions of galaxies. It is not currently known how far the Universe extends, beyond the visible limits. A rough estimate, then, would be that there are 1011 x 1011 = 1022 stars (a one with 22 zeroes, that is), just in the visible Universe - the part that our instruments can reach in theory.
We haven't observed all of the stars in the Universe, so we don't know what is the largest yet.
The most abundant element in the universe is hydrogen.
a series of stars
Hydrogen is the most common element in the Sun, in most stars, as well as in the Universe in general.Hydrogen is the most common element in the Sun, in most stars, as well as in the Universe in general.Hydrogen is the most common element in the Sun, in most stars, as well as in the Universe in general.Hydrogen is the most common element in the Sun, in most stars, as well as in the Universe in general.
Hydrogen is the most abundant element in the universe, making up 75% of ...Thiselement is found in great abundance in stars and gas giant planets.
Because hydrogen is the most abundant element in our universe.
We see the light of main sequence stars throughout the universe. Such stars fuse hydrogen.
Stars are mostly hydrogen, the simplest element in the universe - also, the most common element in the universe. All the elements heavier than hydrogen were formed by nuclear fusion, where the atoms fuse together at very high temperatures and pressures. So carbon, oxygen, iron and everything else is like the "ash" from the nuclear "fire" in stars that once burned in other skies and then were destroyed in nova and supernova explosions.
Hydrogen is the sun's most common element. Hydrogen is "H," element number 1, on the Periodic Table of elements. It is the most abundant element in the universe, because it fuels the stars.
Hydrogen - from it all other elements are made in the stars
fusion reactions in stars
Helium is believed to be the second most abundant element in the universe, because the energy of most stars arises from the fusion of hydrogen to produce helium.
There are estimated to be around 100 billion galaxies in the observable universe, with each galaxy containing hundreds of billions of stars. This means that the total number of stars in the observable universe is in the order of 10^24 (1 septillion) stars.