Humanity’s first helicopter on Mars has been cleared for a historic takeoff.

Ingenuity will take to the skies above Jezero Crater Sunday (April 11) on a 40-second flight — roughly four times longer than the Wright brothers’ first flight on Earth over 117 years ago. The first data, successful or not, should flow back to Earth on Monday (April 12) around 3:30 a.m. EDT (0830 GMT).