The discovery that lightning on Jupiter is ten times stronger than on Earth was not made by a single person or team, but rather through observations made by various spacecraft and instruments over the years.

Here's a breakdown:

* Early Observations: While the Galileo spacecraft, which orbited Jupiter from 1995 to 2003, provided the first detailed information about Jovian lightning, scientists suspected its existence long before. Radio emissions from the planet had been detected as early as the 1950s, hinting at the presence of electrical storms.

* Galileo's Data: The Galileo probe directly observed lightning in Jupiter's atmosphere, confirming its presence and revealing its intensity. The spacecraft measured lightning strikes that were significantly stronger than those observed on Earth.

* Juno Mission: The Juno spacecraft, currently orbiting Jupiter, provides even more detailed data about Jovian lightning. Juno's microwave radiometer instrument allows scientists to study the internal structure of the planet and pinpoint lightning sources deep within its atmosphere. This data has further confirmed the intensity of lightning on Jupiter.

It's important to note that while the strength of lightning is generally estimated to be ten times greater than on Earth, it's a complex phenomenon with variations depending on location and time. The Juno mission is still gathering data, providing a more comprehensive understanding of Jupiter's lightning and its connection to the planet's atmosphere.