Dubbed Kepler-37b, the exoplanet orbits the star Kepler-37 about 210 light-years from Earth in the constellation Lyra. It’s only one-third the size of Earth and smaller than Mercury, which makes ...

A team of astronomers has reported finding the smallest exoplanet around a Sun-like star yet, and it’s the most diminutive by a long shot: The exoplanet Kepler-37b is a mere 3865 kilometers ...

Only about the size of Earth's moon, Kepler-37b is probably a rocky and airless world similar to Mercury. Kepler-37b has a diameter of about 2,400 miles (3,860 kilometers). It takes 13.4 Earth ...

Dubbed Kepler-37b, the planet is smaller than Mercury and only slightly larger than the moon. The Kepler data also revealed two other planets, one slightly smaller than Earth and one twice as large.

The newfound alien planet Kepler-37b is the first exoplanet discovered to be smaller than Mercury. It whips around its parent star every 13 days and has a roasting surface temperature of about ...

The discovery of a strange new world about the size of Earth's moon has shattered the record for the smallest known alien planet, scientists say. The newfound alien planet Kepler-37b is the first ...

Kepler 37b has a radius not much larger than that of the Moon; Kepler 37d is about twice Earth's radius Astronomers have smashed the record for the smallest planet beyond our Solar System ...

The smallest planet, Kepler-37b, is slightly larger than our Moon, measuring about one-third the size of Earth. It is smaller than Mercury, which made its detection a challenge. The Moon-sized ...

The newfound alien planet Kepler-37b is the first exoplanet discovered to be smaller than Mercury. It whips around its parent star every 13 days and has a roasting surface temperature of about ...

Scientists on the lookout for habitable planets outside Earth's solar system found a small wonder with a notable distinction -- Kepler-37b is the smallest planet yet discovered that orbits a star ...

The smallest planet, Kepler-37b, is slightly larger than our moon, measuring about one-third the size of Earth. It is smaller than Mercury, which made its detection a challenge. The moon-size ...

The find of Kepler 37b and its two companions can in part be ascribed to a wealth of data from the Kepler telescope; it has been recording data for nearly four years, and signals that would once ...