Things in space with U

• Universe

  The entirety of space itself—definitely fits.

• Uranus

  A real planet in our solar system.

• Ultraviolet light

  Real electromagnetic radiation found in space.

• Umbra

  Eclipse shadow region in space—totally valid.

• Ursa Major

  A well-known constellation in the night sky.

• Ursa minor

  A real constellation; fits the space theme.

• unknown planets

  Planets we haven’t detected yet, still in space.

• Ultraviolet

  Part of the EM spectrum; common in outer space.

The words in the list Things in space with U come from players of the word game Categories game.