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Mars. The Italian astronomer Schiaperelli thought he could see "canali" (channels, not actually canals) on the planet's surface. Percival Lowell also "saw" them, and wrote an extensive book on what Mars was probably like because of the "canals". It was determined years later, and proven by the Mars orbiters and landers, that the "canals" were an optical illusion to earth-bound viewers. They don't exist.
What else can I help you with?
Which planet is the planet that people thought that there were canals on its surface?
Mars
Does Neptune have canals?
Neptune is a gas planet, thus it has no solid surface (that we've seen yet), thus no canals.
Which planet is famous for its canals?
Mars is the planet famous for its canals. However, it's important to note that these "canals" were a mistranslation of the term used for natural features on Mars and are not actual constructed waterways.
Why is Pluto considered as an unusual planet?
It's not a planet. Because its not big enough to be considered a planet.
Is Pluto the fifth planet?
No. The fifth planet is Jupiter. Pluto was once considered the ninth planet, but is no longer considered a planet.
Why is Pluto considered a planet?
It is not considered a planet, it is a planet, just like Earth, Venus, Neptune (etc).
Why is Neptune not considered as the planet in the Solar System?
Neptune is considered as a planet. It's Pluto that's not considered as a planet due to its small size.
How many planets rotate the sun?
There are eight known planets. Pluto was once considered a planet, but it is no longer officially considered a planet.There are eight known planets. Pluto was once considered a planet, but it is no longer officially considered a planet.There are eight known planets. Pluto was once considered a planet, but it is no longer officially considered a planet.There are eight known planets. Pluto was once considered a planet, but it is no longer officially considered a planet.
Is the moon considered a planet?
No, the moon is not considered a planet. It is a natural satellite that orbits around a planet, in this case, Earth.
Is planet Biyo considered the tenth planet?
No. "Planet" Biyo is not a planet but an asteroid.
Which planet is not always considered a planet?
pluto.
Is a dwarf planet considered a planet?
yes
