The distance between Earth and Mars reaches up to about 250-million miles depending on the ever-changing positions of the two planets as they circle around the sun. On May 30th, Mars and Earth will come closer than they have been in a decade, NASA said.
“Just look southeast after the end of twilight, and you can’t miss it,” Sky & Telescope magazine editor Alan MacRobert said in a statement.
Mars will be 46.8-million miles away, but if skies are clear, the planet will be visible for much of the night and easily seen without a telescope or binoculars. It will be almost 300 years before the planets come that close again.