u/MrHarpoon

The ship contains similar glyphs to what was placed on Voyager 1, a spacecraft sent into deep space. The symbols and records are meant to convey what humanity is, who we are and where we live in case it ever got picked up by some alien civilization.

As Grace is exploring the ship for the first time after being awoken, he finds these. The only reason Nasa would put one of these on a ship was if it was never made to return to earth. Which is exactly what was intended for the Hail Mary.