Multiple choice

Which is the nearest star to the earth?

  1. Sun

  2. Proxima Centauri

  3. Alpha Centauri

  4. Sirius
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Sun is Earth's own star, located just 1 astronomical unit (about 150 million km) away. While Proxima Centauri is the closest star system beyond our solar system at 4.24 light-years, the Sun itself is a star and is by far the nearest.

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