Cas A TimelineGalileo's Moon Drawing Galileo Galilei used a telescope to look at the sky in 1609, opening a new era in Astronomy. More Info: The Moon Close Window | Next Space Event |
Cas A TimelineGalileo's Moon DrawingGalileo Galilei used a telescope to look at the sky in 1609, opening a new era in Astronomy. More Info: The Moon Close Window | Next Space Event |