National Science Fiction Day

123456
Across
  1. 2. Alpha
  2. 3. Zero
  3. 4. Nova
  4. 5. Superhuman
  5. 6. Photon
Down
  1. 1. Spacesuit
  2. 2. Flight
  3. 3. Matter
  4. 4. Spaceport
  5. 5. Beta