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The Hubble telescope helped scientists to do this.

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Q: What invention help scientist discover the planets have moons?
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Related questions

What invention led to the discovery of new planets and moons?

The telescope.


What was the name of the scientist who showed that gravity keeps planets and moons in orbit?

Isaac Newton


Why planets are called planets?

Because the ancient Greek astronomers were one of the first astronomers to discover the planets. As they looked at the planets over time they moved into different places. The planets seemed o orbit the Sun so the Greek astronomers called them planets, which meant :wanderers.


How can scientist tell the age of other planets and moons without getting rock samples?

by rovers


How many moons do the suns have?

The Sun has no moons. Moons orbit Planets > Planets orbit the Sun.


How did Nicolas Copernicus get Famous?

by making a invention which i don't know which invention Vyvyn: the people used to believe that the sun, moons, planets, etc. rotates around the earth and the earth is flat, but he proved that the sun is the center of the solar system and that moons, planets, etc. rotates around it and the earth is round.


What are moons to planets?

Moons are satellites of planets.


How do planets get their moons?

moons are small planets caught in the gavity of bigger planets.


Why the dwarf planets have moons?

planets have moons for day and night


Do planets and moons have stars?

On the contrary! A star has planets, which circulate it. And planets have moons. Stars do not circle planets.


Does the terrestrial planets have more moons than the outer planets?

Oh no, it is the outer planets which have the most moons. Terrestrial planets such as Earth have relatively few moons.


Do Planets and their moons emit light?

No. Planets and moons reflect light.