which planet is often reffered as earth's sister?

Answer 1

Venus - only because it is relatively the same size and it looks similar on the outside. The conditions on the surface are very different, though, and humans could not live there.

Answer 2

Venus is very similar to Earth in size and mass - and so is sometimes referred to as Earth's sister planet - but Venus has a quite different climate. Venus' thick clouds and closeness to the Sun (only Mercury is closer) make it the hottest planet - much hotter than the Earth. Humans could not survive there, and no life of any sort has ever been found. When Venus is visible it is usually the brightest object in the sky after the Sun and the Moon. More than 20 spacecraft have visited Venus including Venera 9, which landed on the surface, and Magellan, which used radar to peer through the clouds and make a map of the surface. There are still many things about Venus's unusual atmosphere that astronomers don't understand.

But according to this site , MOON is refferred like that:
http://www.astronomy.ohio-state.edu/~frogel/Ast161/outline161_a00_part17.html

Answer 3

Venus: Earth's troubled sister
The planet Venus is one of the most familiar sights in the night sky, shining in the west at sunset, or brightening up the early morning gloom. Venus is always close to the sun in the sky, the reason being that Venus is actually closer to the sun than the Earth. Since Venus's path can never take it outside the Earth's orbit, we never see Venus on the opposite side of the sky from the sun. Hence, the lovely planet becomes both the morning and evening star, depending on which side of the sun itís on at a given time.
Venus has a special draw on our imaginations, and not just because if its lovely glow or association with the goddess of love. Venus is the closest planet to Earth, in more than one way. Literally, Venus is the planet that comes closest to Earth in its orbit. As we swing by Venus in a close approach between our two orbits, Venus seems to become impossibly bright, and UFO sightings increase significantly.

more info for you here!
http://www.csmonitor.com/2002/0510/p25s02-stss.html

hope that helped
Cheers

Answer 4

The earth is an unique planate.

Lots of answers say Venus is sister plant.

But to be like sister, it would have to have life on the planet.

At the time (this movement) we do not have a sigle planet known to us that can sustain life, we were on moon but for a short time and had to have special equipment to stay there. The moon is not a planate.

My answer is no other planet.

Answer 5

Venus

Answer 6

Venus

Answer 7

Venus is very similar to Earth in size and mass - and so is sometimes referred
to as Earth's sister planet

Answer 8

Venus is called as earth's sister.
Bcz since these two planets r called twins planets so it is called as sisters.

Answer 9

Venus is very similar to Earth in mass and size, so it is sometimes referred to as Earth's sister planet.

Krishna

Answer 10

Well mars appear to share the almost same Mass n it is the 4th planet from sun after earth so its titled so