Spacewalking astronaut on untethered spacewalk surrounded by empty space with Earth below

Celebrates 50 Years of Spacewalking

NASA Celebrates 50 Years of Spacewalking Feb. 1984 photograph taken by his fellow crewmembers aboard the Earth-orbiting Space Shuttle Challenger on the mission, NASA astronaut Bruce.

Three astronauts on a spacewalk maneuver a satellite into space shuttle cargo bay, with Earth visible in background

May 13, 1992, Record-Setting Spacewalk on Endeavour's First Mission

the mission, the first flight of space shuttle Endeavour, set a record for the first (and only, to date) spacewalk involving three astronauts. The mission also featured a few other firsts.

A year and a half ago, Pluto was a pixellated blur. The New Horizons mission has revealed it as the geologically active center of a dwarf planet system.

Here's How NASA Got Every Last Piece of Pluto Data Down From New Horizons

A year and a half ago, Pluto was a pixellated blur. The New Horizons mission has revealed it as the geologically active center of a dwarf planet system.

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