My identity.

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Across
  1. 3. Everybody makes mistakes!
  2. 7. It starts with a F and ends with a Y.
  3. 9. I am truly Astronomical!
Down
  1. 1. "Oh it's out of the stadium, what a SIX!!!"
  2. 2. Big Hearted
  3. 4. Stephen Hawking
  4. 5. I want to be like Spiderman
  5. 6. I love to ROCK AND ROLL BABY
  6. 8. It is a synonym for Uproarious (2nd definition)