At the scene of Vegeta's explosion..
The rocky canyon in which Goku and Vegeta's battle took place was in the dead center of the massive crater. Had Vegeta been more level-headed, he would of thought to condense the area of impact. However, his actions were driven by pure rage, and the resulting crater expanded beyond the Rocky Canyon, into the Northern Wastelands, and stopped just shy of West City, the home of Bulma Briefs. To the west, the crater extended past Mt. Frappe, and stopped before reaching the Nothern Mountains.
To put it into perspective, the crater covered nearly 1/12th of the Earth's surface area.
And, in dead center, high up in the air, floated Vegeta's remains, a charred, white, rock sculpture of the Saiyan Prince, solidified by his energy. A few seconds after the statue was formed, it plummeted towards the ground, unable to support itself through the use of ki. The statue hit the ground, turned into dust, and scattered through the breeze.
Vegeta had crushed himself, and thrown himself into the wind.
King Yemma sat at his desk, assigning afterlifes to several newly dead souls. The soul of Dabura, the Demon King, approached the desk. King Yemma pondered where he should send him.
"Hmm... I can't send you to Hell, you'd have too much fun there, seeing as you're a demon. I can't put you up into Heaven either, for obvious reasons..."
You couldn't tell, but Dabura's soul was quite annoyed.
"How about you work for me for, say, a few thousand years, and then you can go to Hell?"
Dabura was in no position to disagree, seeing as he didn't have a body yet.
"I'll give you your body back, but not your evil desires. You'll get those back when I send you to Hell."
Dabura's body was returned, and he instantly started his job as Yemma's assistant. After sending Dabura off, Yemma went back to work. The soul of the evil wizard, Babidi, floated towards the desk, and was sent to Hell without a second thought.
"Little green bugger, tryin' to destroy the Earth..." muttered the red ogre behind the desk.
Next, Prince Vegeta's soul approached to desk, and it was, inevitably, sentanced to Hell.
"And I thought you had changed..." mumbled Yemma, sadness evident in his voice.
The next soul apporoached the desk of King Yemma.
"Hmm... Well, from the looks of it, you haven't done anything wrong. Anything at all, actually. Up to Heaven with you."
A free pass to Heaven?
The soul of Majin Buu was happy to oblige.