An Earth analog (also referred to as a Twin Earth, Earth Twin, Second Earth, Alien Earth, Earth 2 or Earth like planet) is another planet (or world) with environmental conditions similar to those found on the planet Earth.

Earth is a beautiful planet.

Earth is a beautiful planet.

Earth is a beautiful planet.

Earth is an extraordinarily hot planet.

International Year of Planet Earth, 2008

International Year of Planet Earth, 2008

These rocks have been hitting our earth for about three billion years, and are responsible for much of what s gone on on our planet.

And what's important about that is that, on our planet, on Earth, wherever we find liquid water, we find life.

We will destroy our planet.

The Earth is a small but beautiful planet.

60 192. International Year of Planet Earth, 2008

Our only chance of long term survival is not to remain lurking on planet Earth, but to spread out into space.

Our Solar System has shown that just being in the habitable zone does not guarantee that a planet is Earth like .

This Planet Earth photograph is put to the test

We are the species called Homo sapiens sapiens, and it's important to remember that, in terms of our place in the world today and our future on planet Earth.

Our Last Chance for a Safe Planet

Mars resembles our planet in some ways.

Decides to declare 2008 the International Year of Planet Earth

This is not on another planet. These are things that are hidden away on our planet.

1. Decides to declare 2008 the International Year of Planet Earth

And if we are to be stewards of our planet Earth and its biosphere, we'd better understand the cosmic significance and do something about it.

Group of 77 (on draft resolution on international year of planet Earth)

We cannot afford to fail the 6 billion inhabitants of planet Earth.

And that is that the planet Earth, or the solar system, or our environment or whatever, is uniquely suited to sustain our evolution or creation, as it used to be thought and our present existence, and most important, our future survival.

One Planet, Many People Atlas of Our Changing Environment

The atmosphere of Earth is a layer of gases surrounding the planet Earth that is retained by Earth's gravity.

As a society, we are gambling with our big banks, with our nuclear power facilities, with our planet.

It wasn't until we really left Earth, got above the atmosphere and had seen the horizon bend back on itself, that we could understand our planet as a limited condition.

In fact, it's the system in the painful process of breaking down our system, of debt fueled economic growth, of ineffective democracy, of overloading planet Earth, is eating itself alive.

Crass tribalism now threatens to overwhelm all that unites us in our common care for our children, our planet, and our future.

And if you know it, then you are smarter than anybody else on planet Earth.

Earth has one Moon, the largest moon of any rocky planet in the Solar System.

This is an invitation to the 70 percent of our unmapped planet.

And all of these robotic missions are part of a bigger human journey a voyage to understand something, to get a sense of our cosmic place, to understand something of our origins, and how Earth, our planet, and we, living on it, came to be.

Earth is the only planet in the universe confirmed to possess large bodies of surface water.

Of course, you could fall back on more traditional reasons to believe in a round earth, like the fact that our planet projects a round looking shadow on the moon during eclipses.

What is at stake is not protecting domestic producers, but protecting our planet.

The future of our planet and our security depend upon an intimate understanding of ocean processes and their interaction.

The scattering power relative to Earth (Λ ΛE) is also shown, as is the distance where Λ 1 (where the body would change from a planet to a dwarf planet).

Solemnly declares that the peoples of our planet have a sacred right to peace

(i) Recurrent publications Our Planet magazine (8) Tunza magazine (8) UNEP annual report (2)

Climate change we're trying to reduce the stress in our personal lives and in our communities and on the planet.

It is predicted that a 3 Earth mass planet in the lensing galaxy, YGKOW G1, caused the event.

The universal view was that without the industrial and agricultural revolutions, planet Earth would still be in equilibrium.