When NASA's astronauts went into space, they took a 70mm Hasselblad camera with them, taking more than 17,000 photos over the course of 13 missions. That includes iconic shots like the famous "earthrise" and Neil Armstrong's first photos on the moon, but also more subtle moments from early fly-bys and the last-ditch Apollo 13 repairs. And thanks to Houston's Lunar and Planetary Institute, they're all currently available online, offering a rarely seen view of humanity's first missions to the moon.