Neil deGrasse Tyson Instagram – These days, Mars rises at sunset and sets and sunrise, which means it’s up all night. And until Venus appears just before Sunrise, Mars is the brightest — dominating the Moonless sky. ⠀⠀⠀⠀⠀⠀⠀⠀⠀ We say it’s at “opposition”, positioned exactly on the other side of Earth from the Sun. Which means we’re closer to each other than at any other time in our orbits — offering excellent photo opportunities. ⠀⠀⠀⠀⠀⠀⠀⠀⠀ Awesome image, even better than his previous one. Taken last night. Courtesy of astrophotographer and Princeton colleague, Bob Vanderbei. https://www.instagram.com/robertvanderbei/