Galileo discovered sunspots in 1612. He also discovered the phases of Venus and four of Jupiter's moons during his lifetime.
Galileo first discovered the sunspots in 1610.
the sun was dying.
Sunspots were discovered in 1610 by Galileo.
The study of sunspots began back in 1609 by Galileo. Galileo noticed the sunspots while gazing through a telescope. The actual study did not commence until 1612.
He noticed that they were in the shapes of animals.
was rotating on the circumfrence on deznuts
Galileo Galilei
No, Venus was already known of in Galileo's time.
Galileo did not discover the two moons of Mars. He made significant contributions to astronomy, including the discovery of Jupiter's four largest moons (the Galilean moons), the observation of sunspots, and the detailed study of mountains on the Moon. The two moons of Mars, Phobos and Deimos, were discovered later in 1877 by Asaph Hall.
The observation that led Galileo to conclude that the sun rotated was when he looked through his telescope and noticed that their were sunspots on the sun. He later looked through the telescope once again and couldn't see the sunspots.
nope
Galileo discovered the four largest moons of Jupiter (later named the Galilean moons), mountains and craters on the moon, phases of Venus, and sunspots on the sun. These observations supported the heliocentric model of the solar system and challenged the geocentric view of the universe.