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Space Trucks! A Pictorial History Of These Mighty Machines

Cargo resupply ships are vital for space exploration. These days they bring food, experiments and equipment to astronauts on the International Space Station. And in recent years, it hasn't just been government agencies sending these things up; SpaceX's Dragon spacecraft and (just this week) Orbital Sciences' Cygnus spacecraft brought up cargo of their own to station in recent months.

NASA just published a brief timeline of (real-life) cargo spacecraft, so we thought we'd adapt that information in pictorial form. Here are some of the prominent members of that elite group. Did we miss anything? Let us know in the comments.

SpaceX's Dragon in orbit during the CRS-2 mission. It was the first commercial spacecraft to resupply the space station, and since 2012 has completed resupply missions. Credit: NASA/CSA/Chris Hadfield

Space shuttle Discovery heads to space after lifting off from Launch Pad 39A at NASA's Kennedy Space Center in Florida to begin its final flight to the International Space Station on the STS-133 mission. The shuttle was NASA's main human spacecraft between 1981 and 2011. Credit: NASA

Progress 51 on final approach to the International Space Station. The Russians have been flying versions of this cargo spacecraft since 1978. Credit: NASA TV (screencap)

The ATV Johannes Kepler docked at the International Space Station. Versions of this spacecraft have flown since 2008. Credit: NASA

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