On this day in space! Sept. 10, 2011: NASA launches GRAIL probes to the moon to map lumpy lunar gravity
محرر واقع مصر
سبيس كوم
10 سبتمبر, 2026
On Sept. 10, 2011, NASA's GRAIL spacecraft launched on a mission to the moon! Here's why the moon gravity mapping mission mattered.
