A Day's Work on the Moon — Mike Shepherd

The cover story features Nikki who always wanted to work on the moon. Now she's got her first job ... working on the moon! Bummer it's just delivering pizza, but, hey, she's still in high school and working on the moon! Another story shares the adventures of Dave who needs a far-out science project to get a scholarship to a decent high school. So he and his 13 year old buddies decide to be the first middle school to put a satellite in orbit. Of course, they can't tell their teachers.
Finally, Stacy grew up Program with Dad gone to Mars or wherever, and Mom doing PR. She swore she'd never go to space and leave her kids behind. But life doesn't always give you want you want. It's more like what you can survive.