NASA's Voyager 2 probe, deep in its historic approach to Neptune, beamed back increasingly detailed images as it prepared for its closest flyby later that month.

NASA's Voyager 2 probe closed in on Neptune, beaming back the sharpest images yet seen of the solar system's outermost giant planet just days before its historic flyby.

NASA's Voyager 2 made its closest approach to Neptune, becoming the only spacecraft ever to visit the ice giant and revealing its Great Dark Spot and rings.

NASA's Voyager 2 made its closest approach to Neptune, the only spacecraft ever to visit the solar system's farthest major planet.

NASA's Voyager 2 probe made its closest approach to Neptune, the last planet on its grand tour, revealing the Great Dark Spot and the moon Triton's icy geysers.

NASA's Voyager 2 made its closest approach to Neptune, the only spacecraft ever to visit the giant blue planet, revealing its Great Dark Spot and moon Triton.

NASA's Voyager 2 made its closest approach to Neptune, the only spacecraft ever to visit the giant blue planet, revealing its Great Dark Spot and moon Triton.

Hungary's government opened its border with Austria to East German refugees, the first major breach in the Iron Curtain and a direct precursor to the Berlin Wall's fall.