Tom Corbett's first day at Space Academy began at 0530 hours with the blaring of the Cadet Corps Song over the central communicators:

"From the rocket fields of the Academy
To the far-flung stars of outer space,
We're Space Cadets training to be
Ready for dangers we may face.

Up in the sky, rocketing past
Higher than high, faster than fast,
Out into space, into the sun
Look at her go when we give her the gun.

From the rocket fields of the...."

Within sixty seconds, the buildings of the Academy rocked with the impact of three thousand voices singing the last stanza. Lights flashed on in every window. Cadets raced through the halls and across the quadrangle. The central communicator began the incessant mustering of cadets, and the never-ending orders of the day.

" ... Unit 38-Z report to Captain Edwards for astrogation. Unit 68-E report to Commander Walters for special assignments."

On and on, down the list of senior cadets, watch officers, and the newly arrived Earthworms. Units and individuals to report for training or study in everything from ground assembly of an atomic rocket motor, to the history of the founding of the Solar Alliance, the governing body of the tri-planet civilization.

Tom Corbett stepped out of the shower in Section 42-D and bellowed at the top of his voice.

"Hit the deck, Astro! Make use of the gravity!" He tugged at an outsized foot dangling over the side of an upper bunk.

"Uhhhh-ahhhh-hummmmm," groaned the cadet from Venus and tried to go back to sleep.