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Hans Leppershey invented the first telescope
Hans was a dutch eye glass maker who pattented the first telescope which had three times magnification. -
Copernicus discovers solar structure
Nicolaus Copernicus put forth the theory that the Sun is at rest near the center of the Universe, and that the Earth, spinning on its axis once daily, revolves annually around the Sun. This is called the heliocentric, or Sun-centered, system. The oly thing he had wrong was that thats only our solar structure, not the universe. -
Gallelio Improved telesopes
Gallelio got telescopes to 8x magnification and pointed them towards the skies. He discovered that venus revolves around the sun and discoverd creators on the moon. -
Saturn has rings!
In 1610, the year after Galileo Galilei first turned a telescope to the sky, he became the very first person to observe Saturn's rings, though he could not see them well enough to discern their true nature. In 1655, Christiaan Huygens was the first person to describe them as a disk surrounding Saturn. -
Reflector telescope invented
The reflecting telescope was invented by Isaac Newton.It uses a concave primary mirror and a flat diagonal secondary mirror. Newton's first reflecting telescope was made in 1668 and is the earliest known functional reflecting telescope. Isaac newto also discovered much of what we know about light and how it breaks up. -
Shape of the Milky Way
Galileo’s telescope was very small, but he was still able to see a faint band of light across the sky called the Milky Way. The significance of that was not clear until William Herschel began building bigger telescopes. Herschel used those to make major discoveries. One of these was that we live in a disc shaped collection of stars, which is what the milky band we saw was. -
Other galaxies discovered
Edwin hubble was able to prove the existence of star clusters outside of the milky way, and even found other galaxies. -
Exoplanets discovered
It was only in 1995 that we first discovered evidence that other stars had planets like ours does. Now weve detected many thousands of other planets and evidence suggests that a majority of sun-like stars have them. The easiest planets to detect are massive worlds located close to their stars. -
Kepler mission
The kepler mission was a search for earth like, life sustining planets.The mission was named after Johannes Kepler, the first person to explain planetary motion. The mission cost $500 million. It discoverd hundres of planets in the habitable zone, which is still a small fractions of all the ones in our galaxy alone. -
DARK MATTER
Originally called “missing mass,” dark matter was thought of by Swiss American astronomer Fritz Zwicky, who in 1933 discovered that the mass of all the stars in the Coma cluster of galaxies provided only about 1 percent of the mass needed to keep the galaxies from escaping the cluster. this was questioned for decades but is mostly accepted at this date.
