Two Earth-like planets have been identified ... “The habitable zone is a concept under which a planet with similar geological and atmospheric conditions as Earth, would have a surface ...

Now, a new study suggests that a thus far undetected Earth-like planet ... Searching for planets lurking in the frigid edges of our solar system is not a new concept. The so-called Planet Nine ...

Astronomers are on the hunt for Earth-like exoplanets ... light can tell us a lot about a planet, including how similar it might be to our own. The starshade concept has been kicking around ...

This artist’s concept ... the planet would be if it had no atmosphere. [Related: Why Venus is so dry.] The exoplanet could have two very different types of atmospheric setups. An Earth-like ...

Astronomers in Japan have published their theory of an “Earth-like planet,” dubbed Planet Nine, that’s hiding in plain sight just a few billion miles behind Neptune. Published last month in ...

The light we are seeing now is from 40 years ago - that’s how long it has taken to reach us here on Earth. “Planets like Gliese 12 b are few and far between, so for us to be able to examine ...

As it turns out, this very quirk of orbital mechanics may be essential to the emergence of life on planets like Earth. That was ... Kepler introduced the concept of elliptical orbits that ...

Proctor/J. Pollard A quartet of Earth-like worlds, each about 20% to 30% the size of our planet, circle one of our closest stellar neighbors, a new study reveals. The rocky alien worlds are close ...