The gas giant Jupiter?

i DO hav to say it was more like a splash. its because the rate at which the comet slammed into Jupiter pretty much obbliterated the comet even against a gas, leaving a huge mark. imagine it running into a solid

It was NOT the comet named Hale-Bopp, nor was it the comet named Swift-Tuttle. The comet that impacted Jupiter was Shoemaker-Levy which broke into several pieces before going into the planet.

"...how can say the bop comet crash into it and explode?..."

It can be said that this comet struck Jupiter because millions of people watched it happen on TV. There's no great mystery about why it happened -- Jupiter has tremendous gravity which pulled the comet down into it. The comet fragments were traveling at more than 130,000 miles per hour when they entered Jupiter's dense gassy atmosphere. Why this resulted in tremendous explosions is for the same reason that if you dive into water at maybe 10 miles per hour you'll not be injured, but if you dive from a great height and strike the water at over 100 miles per hour you'll be severely hurt.

Pictures of Shoemaker-Levy striking Jupiter ==>http://www.dustbunny.com/afk/planets/jupiter/jupit...

The comet was recorded as crashing into Jupiter in many fragments, go watch some videos/newscasts. Were you even paying attention when it happened?

Just like meteors burn up in our atmosphere. swift-tuttle burned up in Jupiter's atmosphere, creating a fireball in Jupiter's atmosphere.

Not an explosion, more like a splash.