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What Were the First Stars Like?

Short answer: We don’t really know.
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What Did the Young Universe Look Like?

The era of the universe called the Dark Ages is as mysterious as its name implies.
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Is the Milky Way Unique?

It is just one of billions of galaxies, but the Milky Way is our galaxy, our home in the universe.
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What Is the Center of Our Galaxy Like?

Even if humans could explore there, it would take us more than 25,000 years to reach it.
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How Do We Know There Are Black Holes?

Black holes are among the most mysterious and fascinating features of the universe, captivating scientists since the 18th century, including Albert Einstein and Stephen Hawking.
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How Can Webb Study the Early Universe?

When astronomers use a telescope to look further away, they are also looking back in time.
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