On Jan. 7, 1610, Galileo Galilei turned his self-built telescope, which he had recently made improvements to, towards Jupiter. There he noticed three spots of light. Though he first concluded they ...

PHILADELPHIA -- Though it looks like a cardboard tube that got left out in the rain, it's a priceless instrument whose owner changed the world. The mottled brown cylinder on display at The Franklin ...

Galileo Galilei was the most brilliant astronomer of his time, armed with a telescope and an obsession with truth. In the ...

The telescope began as a relatively simple device, born out of optical experimentation. It combined a series of lenses and mirrors to collect and magnify light, allowing the user to see far away ...

BOWLING GREEN, Ohio — Bowling Green State University held a public viewing Thursday of a recently-restored 17th-century collection of works from Galileo Galilei, the revolutionary scientist most ...

Add Yahoo as a preferred source to see more of our stories on Google. On July 30, 1610, the famous astronomer Galileo Galilei became the first to observe rings around the planet Saturn. Shortly after ...

On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant stars, Galileo’s repeated ...