Explore Earth Size Planet, Sized Planet and more!

Some 40 light-years from Earth, a planet called TRAPPIST-1e offers a heart-stopping view: brilliant objects in a red sky, looming like larger and smaller versions of our own moon. But these are no moons. They are other Earth-sized planets in a spectacular planetary system outside our own.

Planet hop from TRAPPIST-1e

Some 40 light-years from Earth, a planet called TRAPPIST-1e offers a heart-stopping view: brilliant objects in a red sky, looming like larger and smaller versions of our own moon. But these are no moons. They are other Earth-sized planets in a spectacular planetary system outside our own.

The bright, pinkish-white star at upper left is Orion, known as the 'hunter', is Betelgeuse

The fiery depths of space: Astronomers capture dazzling rainbow nebula swirling round supergiant star

Human Impact:  Our ecological footprint http://wwf.panda.org/about_our_earth/all_publications/living_planet_report/2013_infographic/

Human Impact: Our ecological footprint http://wwf.panda.org/about_our_earth/all_publications/living_planet_report/2013_infographic/

Fun ways for kids to learn how to compare planet sizes in our solar system. Kids then can understand the size and scale of earth compared to other planets.

How kids can compare planet sizes plus free printable

Fun ways for kids to learn how to compare planet sizes in our solar system. Kids then can understand the size and scale of earth compared to other planets.

The top row shows an artist’s conception of the seven planets of Trappist-1 with their orbital periods, distances from their star, radii and masses as compared to those of Earth. The bottom row shows data about Mercury, Venus, Earth and Mars.

Exoplanet discovery: seven Earth-sized planets found orbiting nearby star

The top row shows an artist’s conception of the seven planets of Trappist-1 with their orbital periods, distances from their star, radii and masses as compared to those of Earth. The bottom row shows data about Mercury, Venus, Earth and Mars.

We live in a blu planet that circles around a ball of fire next to a moon that moves the sea, and you don't believe in miracles? Life Changing Quote

Top 30 Positive Quotes to live by

We live in a blu planet that circles around a ball of fire next to a moon that moves the sea, and you don't believe in miracles? Life Changing Quote

Find out about the nearby Alpha Centauri star system and its newly-discovered Earth-size planet, in this SPACE.com infographic.

Find out about the nearby Alpha Centauri star system and its newly-discovered Earth-size planet, in this SPACE.com infographic.

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