One AU equals the average distance between Earth and the sun, around 93 million miles (around 150 million kilometers)?
Mars orbits the sun at an average distance of 1.5 AU, and at its apogee (its farthest distance from Earth) reaches a distance of 2.6 AU.Though around 50 million miles (80 million kilometers) may not sound particularly close, Mars is one of Earth's closest neighbors in the solar system, meaning the perigee is enough to have a pronounced effect on how the Red Planet is seen from our planet. .Despite Mars getting close to Earth on Wednesday, this perigee won't be the closest that the Red Planet has ever could to our planet.
The closest that Mars could theoretically come to Earth is 33.9 million miles (54.6 million km).NASA says that Mars and Earth won't come as close to each other as this until again for another 215 years when they make another super close approach in 2237. .Editor's Note: If you snap Mars during its close approach and would like to share it with Space.com’s readers, send your photo(s), comments, and your name and location to [email protected]