Blue Sky on Mars is the sixth album by alternative rock musician Matthew Sweet.

The cover of the album features an image by Viking 1, the first spacecraft to land on Mars; the album's liner notes include additional imagery of the planet's landscape as taken by the spacecraft on July 20, 1976.

[8] The album's title comes from the tour in the film Total Recall.

Critic Jim Farber of Entertainment Weekly gave the album a "B", writing that it "matched his usual sugary melodies to denser production, hinting at everything from the Beach Boys to '80s new wave", and adding that "[Sweet's] power pop still has the knack".

Club wrote that the album contained "nice, sugary three-minute pop singles that instantly lodge themselves in your cranium", adding that it is "a slight but worthy addition to his terrific catalog".