I wasn't able to find the whole scene, but you can watch part of the hexadecimal scene from The Martian. Download this worksheet, decode the three hexadecimal messages and type in your answers. Save ...

Essentially, the ASCII table can be used as a giant decoder. The important columns for "The Martian" are the ones labelled "Hex" and "Character." When NASA points to a pair of hexadecimal digits ...

In "The Martian," astronaut Mark Watney is stranded on Mars. In order to contact with NASA, Watney digs up the Mars Pathfinder, the probe which NASA lost contact with in 1997. He decides to use a ...