Elon Musk's SpaceX on Monday launched a crew of four private astronauts led by a crypto entrepreneur on a mission to orbit Earth from pole to pole, a novel trajectory in which no humans have traveled before.

SpaceX’s Fram2 mission is set for liftoff on Monday at 9:46 p.m. ET, launching from NASA’s Kennedy Space Center in Florida. The mission will launch a private crew of astronauts on board a Dragon spacecraft, where they will spend three to five days admiring our planet from a unique polar orbit.

SpaceX chalked up another human spaceflight Monday night, taking four civilians on a trip around the Earth that has never been done before.