The smallest planet in the Solar System is...
Mercury
Ursa Minor
Which planet was downgraded to "dwarf planet" in 2006?
Pluto
Who is the "father of astronomy" who discovered the four largest moons of Jupiter?
Galielo Galielii
Does "the red planet" exist? If yes, what is it?
Mars
How much are the zodiac constellations?
12
Which planet has the most moons?
Jupiter - 95 moons
Who is the scientist who proved the laws of motion and gravity? Hint: an apple fell on his head?!
Isaac Newton
Which planet is famous for its rings?
Saturn
How many constellations have been discovered by now?
88
Which planet is known as the "evening star" or "dawn star" because it is visible either after sunset or before sunrise?
Venus
Who was the first scientist to suggest that the Sun, not the Earth, was at the center of our solar system?
Nicolaus Copernicus OR Johannes Kepler
Nicolaus Copernicus
On which planet the day is longer than the year?
Venus
In which constellation is the star Betelgeuse located?
Orion
Which planet is known for its violent winds, reaching speeds of 2400 km/h?
Neptune
Who was the first person to use a telescope to observe the night sky?
Galileo Galielii
What is Ganimed?
The biggest moon of Jupiter!
Is it true that the Pleiades (an open star cluster) are located in the constellation Taurus?
TRUE
Which planet has the largest volcano in the solar system? Hint: "red planet"
Mars
Which scientist proved that the universe is expanding?
Edwin Hubble