Within our solar system, it's really easy to tell each planet's distance from the sun.
From Newton's law of gravitation, we realized that the time it takes a planet to revolve around the sun only depends on the planet's distance from the sun, and if we know the distance of one of them, we can figure out all the others.
If we watch a planet move through the sky, we can see how long it takes for that one to revolve once around the sun. Then we need to know both the distance and time of one planet, and from that one we can calculate all the others.
The one for which we know both the distance from, and time to orbit, the sun, is ... our Earth ! With this information, plus watching another planet to see how long it takes to orbit the sun once, we can calculate how far it is from the sun.
It is the only planet that supports life. (As far as we know)
As far as we know, Earth.
As far as we know, Earth is the only planet in our solar system that can support human life. Scientists continue to search for planets outside our solar system, known as exoplanets, that may have conditions suitable for life. However, Earth remains the only known planet where humans can live comfortably without the use of specialized equipment.
Only the Earth, as far as we currently know.
Michael who? If you are talking about the John Travolta CHARACTER from the movie, Michael - He's an Angel - from Heaven. Not a planet. All other Michaels are from Earth as far as I know.
no there is not as far as we know
Not as far as we know.
As far as we know only the planet Earth has any military.
Only the Earth, as far as we know.
The planet Mercury has no moons as far as we know.
It is the only planet that supports life. (As far as we know)
as far as i know you cant
Actually as far as i know....there are 8 planets in our solar system.......they aremercuryvenusearthmarsjupitersaturnuranusneptunepluto is now not considered as a planet.....it is a dwarf planet...
Planet Mars has two moons, Phobos and Deimos, and has no rings as far as we know.
Mercury is the hottest planet in the universe so far as we know it.
As far as we know there are no life forms on the planet Mars.
It is called the mystery planet because it is so far away, and we don't really know anything about it because we are unable to visit it.