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 ...

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 ...

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 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 ...

It’s called Kepler-37b (O.K., so the name isn’t so cute), it orbits a star 200 light-years away, and not only does it give us a new appreciation for how diverse so-called exoplanets can be ...

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 new planet, called Kepler-37b, has a radius less than a third the size of Earth’s, making it roughly the size of the moon, a paper published online in the journal Nature reported Wednesday.

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 planet - known as Kepler-37b - orbits a star 210 light years away in the constellation Lyra. It's one of three known planets in that solar system. Discoverer Thomas Barclay of the NASA Ames ...