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In the early 17th century
Thomas Lynch
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∙ 14y agoGalileo actually discovered four of Jupiter's larger moons, and that was in 1610. I believe he was the first to view the planet with a telescope. No one person is credited with having discovered it though. It is one of the few planets visible in the night sky without binoculars or a telescope, hence it has been observed by man for thousands of years.
Wiki User
∙ 10y agoGalileo DID NOT discover Mars. Mars has always been visible from Earth to the unaided human eye and was known to and named by our ancient ancestors. Galileo is believed to be the first person to view Mars though a telescope.
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∙ 12y agoGalileo did not discover Mars. However, in 1609, Galileo was the first to view Mars through a telescope.
See related question.
Kepler used the motion of Mars to compute the calculations that led to his Laws of Planetary Motion.
Wiki User
∙ 14y agohe discovered it a little while after he used his telescope and saw mars and maybe called it mars but he could of named by someone else
Wiki User
∙ 12y agoGalileo did not discover Earth. It was "discovered" by prehistoric civilization, since they were living on it, after all. People long before Galileo called their home world Earth.
Wiki User
∙ 10y agoMars has always been visible from Earth to the unaided human eye and was known to and named by our ancient ancestors. Galileo must have first seen Mars as a child in Italy.
Wiki User
∙ 10y agoin 1878
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How did Galileo discovered that the earth is a sphere?
Actually, Galileo wasn't the person who discovered that the earth was a sphere.
What did Galileo discover with his telescope?
He discovered that the earth was round not flat.
What did Galileo discover in the different phases of Venus?
Galileo discovered, in his observations of the different phases of Venus, that Venus and the Earth were revolving around the Sun. This was contrary to the misconception at the time that everything revolved around the Earth.
How did Galileo galili discovered that earth is round in shape?
He did not need to discover that as it was already known by the ancient Greeks.
Who swore that the earth revolved around the sun?
Copernicus and Galileo discovered the earth revolves around the sun. Any number of people may have sworn to this.
How did Galileo discovered that the earth is a sphere?
Actually, Galileo wasn't the person who discovered that the earth was a sphere.
Who discovered earth rotation?
Galileo
What did Galileo Galilel discoverer?
Galileo Galileo discovered the objects in the solar system orbited the sun not the earth
Who is the first man who discovered earth was round or flat?
Galileo.
Who discovered earth is not the center of the universe?
cupercunicus- Actually it was Galileo
Who discovered that the sun and planets revolve around the earth?
galileo galilei
Who first discovered that earth moves round sun?
Galileo Galili
Who discovered that the Earth was rotating and revolving around the sun?
galileo galilei
What did Galileo discover with his telescope?
He discovered that the earth was round not flat.
What did Galileo galilei discovered?
He found out about the planets and how the earth and moon revolved.
What discovered that lightning on Jupiter is ten times stronger than lightning on earth?
Galileo Probe
What did Galileo discover in the different phases of Venus?
Galileo discovered, in his observations of the different phases of Venus, that Venus and the Earth were revolving around the Sun. This was contrary to the misconception at the time that everything revolved around the Earth.
