Scientists just put a 3D printer in space. This is a huge deal for space travel.

Mars, here we come

In June 2016, the first tool to be commercially manufactured in space was created on the AMF, a Kobalt wrench.
(Image credit: Lowes Innovation Labs)

On April 13, 1970, an oxygen tank on a spacecraft carrying three Apollo 13 astronauts to the moon exploded.

"Houston, we've had a problem here," command module pilot Jack Swigert famously said upon feeling his ship rattle and seeing the glow of the warning lights. In that instant, the crew's hopes of reaching the moon vanished. They were 200,000 miles from home, stuck in a crippled spacecraft, and to make matters worse, they were running out of air. They needed a new air filter.

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