Some experts believed it was centuries old and first observed by Italian astronomer Giovanni Domenico Cassini in the 17th century, while others thought the storm was more recent. Now, new research ...

The massive swirling storm system was originally thought to have been discovered by astronomer Giovanni Domenico Cassini in 1665, but a new study found it was not the most recent spot. That means ...

In 1665, astronomer Giovanni Domenico Cassini observed a massive storm raging on Jupiter. It became known as the Great Red Spot, a swirling oval of clouds that’s almost twice as wide as Earth.

From 1665 to 1713, astronomer Giovanni Domenico Cassini and others observed a dark oval — nicknamed the Permanent Spot — on Jupiter at the same latitude where the Great Red Spot now swirls.

“He had no hobbies,” says Gabriella Bernardi, author of Giovanni Domenico Cassini: A Modern Astronomer in the 17th Century. “From his diary emerges a man completely devoted to his profession.

Giovanni Domenico Cassini (1625-1712) was an Italian-born, French-naturalized engineer, mathematician, and astronomer. He first identified a gap (the eponymous Cassini Division) between two of ...