NASA’s OSIRIS-REx asteroid-sampling spacecraft captured this photo of Earth on Sept. 22, 2017, shortly after performing a speed-boosting flyby of our planet. On Friday (Sept. 22), OSIRIS-REx zoomed 10,711 miles (17,237 kilometers) above Antarctica, acing a “gravity-assist” flyby designed to boost its speed and set its course toward a near-Earth asteroid called Bennu. The probe took the […]