Here are some pics of most earth-like exoplanets uploaded by NASA: Gliese 667Cc, 22 light-years from Earth, is 4.5 times Earth's mass, orbits its cooler red dwarf star in 28 days, and likely resides ...

However, the newly discovered planet, Kepler-442b ... meaning it’s larger than Earth but smaller than gas giants like Neptune ...

are not a replica of the Earth, it has mega-oceans on the surfaces, but their properties are utterly different. For example, a planet like Kepler-138d has an average atmospheric temperature of around ...

Scientists work to define a “habitable zone,” which means that if it’s too close to a star, the water heats and evaporates, and too far, it freezes. Also, the atmospheric conditions need to be just ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

"The three previously known planets that orbit the star Kepler-51 are about the size of Saturn but only a few times the mass of Earth, resulting in a density like cotton candy. We think they have ...

A super-Earth planet that dips in and out ... What's most remarkable about this new planet, however, is its orbit. While Johannes Kepler taught us that no planetary orbit is perfectly circular ...

Kepler 102's olivine planet, is thought have plate tectonics like Earth, while the garnet planet orbiting Kepler 407 may be more like Mars. Credit: Robin Dienel, Carnegie DTM Wendy Panero ...