An curved arrow pointing right. 55 Cancri e – a planet eight times the size of Earth – is 40 light-years away. Astronomers just found out what its air is made of. Produced by Matthew Stuart.

An curved arrow pointing right. Astronomers were recently able to map the temperature of 55 Cancri E — a Super-Earth 40 light-years away — and discovered half the planet is almost completely ...

This artist’s concept shows what the exoplanet 55 Cancri e could look like. Also called Janssen, 55 ... [+] Cancri e is a so-called super- Earth, a rocky planet significantly larger than Earth ...

This artist's concept shows what the exoplanet 55 Cancri e could look like based on observations from NASA’s James Webb Space Telescope and other observatories. Observations from Webb’s NIRCam ...

An artist's concept shows the exoplanet 55 Cancri e, also called Janssen, a so-called super-Earth, a rocky planet significantly larger than Earth but smaller than Neptune, along with the star it ...