What celestial body did Galileo map in detail, revealing craters and mountains?
Chapter 1

The birth of looking closer

Chapter 2

Bending and bouncing light

Chapter 3

Beyond the visible rainbow

Chapter 4

Leaving Earth behind

Chapter 5

The global eyes of tomorrow

YOUR GOAL

Master of Everything about the telescope

Ch 1 · The birth of looking closer
artiteacher

artiteacher Galileo turns to the skies

Jul 9

artiteacher

artiteacher The birth of looking closer

Two tiny lenses of glass and the edge of the world is right in front of our eyes.

Jul 9

artiteacher

artiteacher The Dutch spectacle makers

Jul 9

artiteacher
Newton replaces glass with mirrors

artiteacher Isaac Newton invented the reflecting telescope in 1668 to solve color distortion caused by lenses.

Jul 9

artiteacher
Galileo turns to the skies

artiteacher Galileo Galilei modified the spyglass in 1609 to observe the Moon and moons of Jupiter.

Jul 9

artiteacher
The First Peek
BETA

artiteacher The First Peek

Jul 6

artiteacher
Fun Fact

Early glass lenses: Early telescopes used green-tinted glass meant for spectacles, which made stars look blurry and surrounded by colorful rainbow halos.

Jul 9

artiteacher
Glossary
telescope (noun)
An optical instrument designed to make distant objects appear nearer by using lenses or curved mirrors. Dutch spectacle-maker Hans Lippershey filed the first patent for this magnifying device in October 1608.

Jul 9

artiteacher
Gossip

Which cosmic discovery would shock you most?

Jul 9

artiteacher
Quiz

Who filed the first patent for a telescope design in October 1608?

Jul 9

artiteacher

artiteacher Newton replaces glass with mirrors

Jul 9

artiteacher
Quiz

In what year did Galileo Galilei first point his improved telescope at the night sky?

Jul 9

artiteacher

artiteacher The giant of Birr Castle

Jul 9

artiteacher
Quiz

The Leviathan of Parsonstown, built in Ireland in 1845, was famous for being what?

Jul 9

artiteacher
Quiz

Which country did Hans Lippershey live and work in when he invented his spyglass?

Jul 9

artiteacher
Quiz

What major planetary feature did Galileo discover in 1610 using his telescope?

Jul 9

artiteacher
Quiz

What optical problem did Isaac Newton solve by using a mirror instead of a lens?

Jul 9

artiteacher
Quiz

What celestial body did Galileo map in detail, revealing craters and mountains?

Jul 9

artiteacher
Quiz

What material did Isaac Newton use for his telescope's primary mirror in 1668?

Jul 9