Science with Atbin's video: Kepler-37b

Kepler-37b is located approximately 210 light-years from Earth. It is slightly larger than the Moon, with a diameter of about 3,900 kilometres (2,400 mi). NASA states that it probably has no atmosphere and cannot support life. Furthermore, it is most likely composed of rocky materials. Because it is so close to its star (Mercury is more than three times as far from the Sun), Kepler-37b's mean temperature is estimated to be around 425 °C (800 °F). The innermost known planet in its system, Kepler-37b, orbits its parent star at a distance of about 15 million kilometers (9.3 million miles), with a period of roughly 13 days. The outer two planets in the system have orbital periods. within one percent of the 8:5 and 3:1 resonances with Kepler-37b's period.