...Okay, I'll admit Mr. Popo's telescope is magical.
And now to do something I should have done awhile back...

First Goku, Trunks, and Bulla...
Now...Gohan, Goten and Vegeta...
L_G was sick of this. Something had to be done.
"Help the others with the Interceptor II. Professor Jeff will help you," said L_G in a stern, calm voice.
"What about you?" asks Goku.
"I'm going to see an old friend..."
L_G walks over to Jeanie, who is finished installing one of the first laser cannons. "You seem tense," she says, "I guess I shouldn't ask why."
L_G grins. "I've trained you well, Jeanie. I need you to run an arrand for me."
"Oh?"
L_G whispers it into Jeanie's ear. The less anyone heard, the less likely the plan would be botched up. "I understand," confirms Jeanie. "I shall leave immediately."
Jeanie opens a portal, and goes through it.

Somewhere, hundreds of light years way, was an ancient civilization, lost to both time and neglect. Jeanie arrived, and took a look around. "It should be around here somewhere..aha!" she exclaims. The writing was barely readable, but it said:

TEMPLE OF TIME, THIS WAY. --->