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Without space probes, the only knowledge we have of the solar system comes from ground-based telescopes. That's how we did it for 300 years before satellites.

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15y ago

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Related Questions

How many planets has your solar system?

we have 9 planets to my knowledge. including pluto


How many planets of the solar system without Pluto?

Since the 2006 reclassification of Pluto to a Dwarf Planet, there are now eight planets in our solar system.


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In our solar system, Mercury and Venus are the two planets which do not have moons.


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Can you live without the other planets in the solar system?

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Are there any planets that can have life?

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How many planets have atmosphere?

Seven of the eight planets in out solar system have atmospheres. Mercury is the only planet without one.


How many planets and plutoids are in the solar system?

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How did ancient scientists know that there are nine planets in the solar system without having any special equipment?

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Do you control the muscular system or does it function without knowledge?

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