Scientists have discovered over 4,000 exoplanets outside of our Solar System, according to NASA's Exoplanet Archive. Some of these planets orbit multiple stars at the same time. Certain planets are so ...

An exoplanet twice the size of Earth, known as Wolf 503b, has been found just 145 light-years away from our home planet. The researchers noted that Wolf 503b is interesting not only because of its ...

Researchers have described a new, lower size limit for planets to maintain surface liquid water for long periods of time, extending the so-called Habitable or 'Goldilocks'' Zone for small, low-gravity ...

Scientists with NASA announced they have discovered an Earth-sized planet that is likely rocky – and could be habitable. The planet, named TOI 700 e, is slightly smaller than Earth and orbits a red ...

A NASA mission has spotted an Earth-size exoplanet orbiting a small star about 100 light-years away. The planet, named TOI 700 e, is likely rocky and 95% the size of our world. The celestial body is ...

A planet-size object may be orbiting the sun in the icy reaches of the solar system beyond Pluto. Scientists at the University of Arizona's Lunar and Planetary Laboratory (LPL) have determined that an ...