ERIS
Uranus
It was discovered by William Herschel on March 13, 1781 and was the first planet discovered in modern times. It is also the first planet discovered with a telescope as opposed to the naked eye.
In "modern times" as we know them, Uranus was the first planet discovered. All the other planets known to then were visible to the naked eye from earth, and, thus, were known to ancients. It is exceptionally dim and moves very slowly in its orbit. Uranus was discovered by William Hershel, who saw it in a telescope and announced his discovery on March 13, 1781. The Neptune was discovered in 1846.
Some of the new bodies discovered after the introduction of the telescope in the 17th century include moons of other planets (such as Galilean moons of Jupiter), the phases of Venus, sunspots, and various nebulae and star clusters. These discoveries revolutionized our understanding of the universe and played a crucial role in the development of modern astronomy.
Nicolaus Copernicus discovered that the sun, not the earth, was the center of our Solar System. Galileo improved on the telescope, and was able to verify Copernicus' findings. Sir Issac Newton discovered gravity, and his laws are the backbone of modern physics.
Radio telescope can "see" radio spectrum events and locations in the universe.
The telescope is not very modern it has been around for hundreds of years and is used to observe the stars. In modern technology Nasa and universities use them to explore space looking for planets. They are very useful.
THEY DISCOVOR STUFF like stars and planets
Grote Reber, not Grote Weber, is credited with building the first radio telescope in 1937. He used a parabolic antenna to observe radio waves from outer space, laying the foundation for modern radio astronomy.
1609 AD.
One I know is the invention of the telescope
galileoAnswer:The four bright satellites of Jupiter were discovered independently by Galileo and the German astronomer Simon Mayer in the early seventeenth century. There is evidence that these satellites were visible to the naked eye prior to the discovery of the telescope and the "discovery" may be more of a "confirmation". The nake of the initial maked eye observer is not known.