The discovery has raised a lot of questions ... Saturn’s first known moon, Titan, was discovered by Dutch astronomer ...

[Christiaan Huygens] was a pretty decent mathematician and scientist by the standards of the 17th century. However, the telescopes he built were considered to be relatively poor in quality for the ...

The discovery has raised a lot of questions ... Saturn’s first known moon, Titan, was discovered by Dutch astronomer Christiaan Huygens 45 years later. Jupiter’s four largest moons ...