When it comes to the most common atom in the universe, hydrogen takes the top spot. Hydrogen is the simplest and lightest element on the periodic table, consisting of just one proton and one electron. It is estimated that roughly 75% of all normal matter in the universe is hydrogen.

Hydrogen is abundant in stars, where nuclear fusion reactions convert hydrogen into helium, releasing vast amounts of energy in the process. This is what powers the sun and other stars, making hydrogen a crucial element for sustaining life as we know it.

Not only is hydrogen the most common atom in the universe, but it also plays a key role in the formation of other elements. During the early stages of the universe, hydrogen atoms were pulled together by gravity to form massive clouds, eventually leading to the formation of stars and galaxies.

Hydrogen is also a key component of water, which is essential for life on Earth. It is found in a wide range of compounds and plays a vital role in various chemical reactions. In recent years, hydrogen has gained attention as a potential clean energy source, with hydrogen fuel cells being explored as a renewable alternative to fossil fuels.

For more information on the most common atom in the universe, you can visit the following links:

• NASA - What is the most abundant element in the universe?
• Britannica - Hydrogen

In conclusion, hydrogen is not only the most common atom in the universe, but it is also a fundamental building block for the cosmos. Its presence is felt in everything from the stars in the sky to the water we drink, making it a truly remarkable element with a profound impact on the universe as a whole.

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