Giovanni Cassini was born in Perinaldo, in what is now Italy, on June 8, 1625. Early work on Jupiter and Mars' rotational periods and the positions of Jupiter's satellites led to an invitation to ...

Add Yahoo as a preferred source to see more of our stories on Google. On Dec. 23, 1672, Italian astronomer Giovanni Cassini discovered Rhea, Saturn’s second-largest moon. Rhea is made up of rock and ...

Add Yahoo as a preferred source to see more of our stories on Google. On Dec. 31, 2004, NASA's Cassini spacecraft flew by Iapetus, Saturn's third largest moon.Iapetus was discovered by the Italian ...

Across the span of 1671 through 1684, Italian-French astronomer Giovanni Cassini discovered four moons of Saturn while working under the patronage of King Louis XIV. Cassini collectively named the ...

Launched in 1997, NASA's Cassini mission was designed to orbit Saturn, studying the planet's rings, icy moons, and general composition. During its 13 years of circling, it also discovered bizarre ...

Jupiter’s Great Red Spot was first discovered in 1665 by astronomer Giovanni Domenico Cassini, and both scientists and the public have been awe-stricken by its beauty and the processes that created it ...

Products Market Alerts MyCollection Price Database Become a Partner Gallery ...

In the 17th century, astronomers Christiaan Huygens and Giovanni Cassini trained their telescopes on Saturn and uncovered a startling truth: the planet's luminous bands were not solid appendages, but ...

In a portrait of perfect composition, Saturn’s moon Tethys has been captured hanging suspended in space just below the planet’s horizon. This latest image in Saturn’s family album was captured on 18 ...

On the evening of September 11, 2017, Griffith Observatory hosted an enthusiastic group of observers. The assembled crowd looked through the 12-inch Zeiss refracting telescope, the centerpiece of the ...

On Dec. 23, 1672, Italian astronomer Giovanni Cassini discovered Rhea, Saturn’s second-largest moon. Rhea is made up of rock and ice and is covered in craters. Rhea is also the only moon discovered to ...