Did NASA Accidentally Nuke Jupiter?

On September 21, 2003 NASA deliberately directed its amazing, still-functioning Galileo spacecraft to make one final, 108,000 mph suicidal plunge into Jupiter's vast atmosphere.

When NASA announced its 'Galileo into Jupiter' option, among those to publish immediate, serious objections was an engineer named Jacco van der Worp. Van der Worp claimed that, plunging into Jupiter's deep and increasingly dense atmosphere, the on-board Galileo electrical power supply – a set of 144 plutonium-238 fuel pellets - would ultimately 'implode'; and that the plutonium Galileo carried would ultimately collapse in upon itself under the enormous pressures of Jupiter's overwhelming atmosphere.