Mars will be the brightest it’s been in two years as it undergoes what’s called Mars opposition, an orbital placement that puts the Earth directly between the sun and the Red Planet. It's a phenomenon that happens once every two years (or 26 months), about the time the Red Planet takes to completely orbit the sun. NASA The Hubble Space Telescope snapped this image of Mars just days before the red planet's opposition on May 22. Also on HuffPost Mars Photos Mars Photos1 of 7 Shallow Irregular Pits with Raised Rims Researchers are still trying to figure out what caused these "mystery" features. That's when Mars will make its closest approach to the Earth since 2005, coming about 46.8 million miles away.

Source: Huffington Post May 22, 2016 11:11 UTC