A thick atmosphere has been identified around a planet about twice as big as Earth that sits outside our solar system, according to newly released research. The discovery was reported in the ...

Beyond our solar system, countless alien worlds of lava, ice, water and noxious gas swirl through the cosmos. Here are some of the strangest exoplanets that scientists have discovered so far.

More about 55 Cancri e 55 Cancri e is located about 40 light years away from Earth in the constellation Cancer. It’s notable for being one of the first discovered exoplanets that orbits a main ...

55 Cancri e, also known as Janssen, is one of five planets orbiting the star 55 Cancri. With a diameter nearly twice that of Earth and a slightly higher density, it is categorized as a ...

55 Cancri e is classified as a super-Earth, with a diameter almost twice that of Earth and slightly greater density. It orbits so close to its star that its surface is likely to be molten, a bubbling ...

While 55 Cancri e has been previously identified to potentially possess an atmosphere comprised of volatiles (nitrogen, oxygen, and carbon dioxide) using the now-retired NASA Spitzer Space Telescope, ...

The so-called super Earth — known as 55 Cancri e — is among the few rocky planets outside our solar system with a significant atmosphere, wrapped a blanket of carbon dioxide and carbon monoxide.