There's a Lot More Metal in the Sun Than We Thought

Astronomers have discovered that the sun is more metallic than previously thought.

Perhaps resolving an astronomical enigma that has perplexed scientists for years.

The sun is the closest star to Earth and the source of all life. 

Plants would be unable to photosynthesize without it, and oxygen levels would plunge. We'd also run into a lot more things.

The sun is a massive ball of heated gas made up of around 98 percent hydrogen and helium, according to scientists.

Because the sun is so hot and dense, hydrogen atoms fuse together to form helium, releasing energy in the process.

The 'We Are NASA' video sends shivers up the spines of space enthusiasts.

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