Astronomer Giovanni Domenico Cassini first observed what he called the “Permanent Spot” on Jupiter in 1665. New research suggests that the Great Red Spot formed about 190 years ago, which means that ...

The troubled Cassini probe will resume making scientific observations of Jupiter before flying by the giant planet to conduct joint studies with another spacecraft, NASA said Thursday.

In the 1660s, Italian astronomer Gian Domenico Cassini discovered something while looking at the planet Jupiter: a massive spot now known as the planet’s signature. Known as the Great Red Spot ...

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 ...

Jupiter's iconic Great Red Spot has persisted for at least 190 years and is likely a different spot from the one observed by the astronomer Giovanni Domenico Cassini in 1665, a new study reports ...

Jupiter’s striking Great Red Spot has puzzled astronomers for years. Now, they think they know just how old it is and how the cyclone formed in Jupiter’s atmosphere.

The Great Red Spot probably formed about 200 years ago and couldn't have been visible with the earliest telescopes, according to new simulations of Jupiter's atmosphere.

Researchers studying the origin of Jupiter's Great Red Spot suspect it's not the same storm observed by Cassini in 1665. Instead, this Great Red Spot likely formed at least 190 years ago.

Image of Saturn in Cassini spacecraft's 'final moments' isn't what it seems NASA published thousands of photographs of Saturn taken by the now-defunct satellite.

Astronomers think they’ve figured out how and when Jupiter’s Red Spot formed Astronomers concluded it is not the same and that Cassini's spot disappeared in 1708.

Jupiter’s striking Great Red Spot has puzzled astronomers for years. Now, they think they know just how old it is and how the cyclone formed in Jupiter’s atmosphere.