Possible Clues:

• Like some rays and dust
• 'Far out, man!'
• Vast beyond comprehension
• ___ Brownies (Little Debbie dessert)
• Inconceivably big
• Vast; of the universe
• It's common because host embraces one? That's tremendous
• Universal humorists on tour
• Because I'm travelling skywards, the speed of light is enormous
• Universal wit entertaining third of listeners