Can't there be another planet like Earth?

Question

I've always wondered if it was possible that there is another planet like Earth in our solar system. Couldn't there be a planet the same distance away from the sun as the Earth but on the other side of the sun so we never see it? I've always wondered that and if it was even possible.

Answer 1

Sure, there could be a similar planet to Earth somewhere, but not in our solar system. It would leave gravitational effects behind that would be unmistakable. We knew in the 1940's that Pluto was out there due to small gravitational effects on Neptune, but it took us 30 years to find it. And that was VERY small and far away - a similar Earth would be much more obvious.

Answer 2

If that were true, we'd just have to launch a space ship, and sit in space (out of orbit) for 1/2 a year, then we could land on the other Earth... or Earth II

That's be kewl, I wonder what kind of TV shows they have?

Answer 3

You mean like 2 planets on the same orbit? I doubt it's possible.

Answer 4

Scientists are looking into the moon surrounding Jupiter. Europa has been sighted to contain a frozen sea. Maybe soon we'll learn how to survive cold, fly faster, and SAVE MOTHER EARTH!

Answer 5

The Drake Equation shows us that there should be millions of other planets like earth. However, we have not discovered them as of yet.

Answer 6

Not if you think about Earth forming and sweeping up all the extra particles in our orbit.

Answer 7

planet X? http://www.nineplanets.org/hypo.html

Answer 8

http://en.wikipedia.org/wiki/Perturbation_%28astronomy%29

Gravitational perturbation would have shown another planet on the other side of the sun.

Answer 9

Maybe or maybe not. If its gods will, then mayeb wel will find out

Answer 10

MAYBE BUT AROUND US VENUS IS CONSIDERED AS THE EARTH'S SISTER...