55 Cancri e (abbreviated 55 Cnc e, also known as Janssen / ˈdʒænsən /) is an exoplanet orbiting a Sun -like host star, 55 Cancri A. The mass of the exoplanet is about eight Earth masses and its diameter is about twice that of the Earth.

Oct 24, 2024 · 55 Cancri e is a super Earth exoplanet that orbits a K-type star. Its mass is 7.99 Earths, it takes 0.7 days to complete one orbit of its star, and is 0.01544 AU from its star. Its discovery was announced in 2004.

Oct 19, 2023 · The hellish super-Earth '55 Cancri e' may be constantly losing and re-growing its atmosphere, a new study of the planet's strange transit signals suggests.

May 8, 2024 · 55 Cancri e is a super-Earth planet that appears composed of diamond-like carbon — now, thanks to the JWST, astronomers have found the world has "grown" a second atmosphere.

NASA explores the unknown in air and space, innovates for the benefit of humanity, and inspires the world through discovery. Soar above an ocean of lava amid the sparkling clouds of 55 Cancri e.

Jul 28, 2017 · 55 Cancri e is a super-Earth — about twice our planet's size — that zooms around its star in 18 days. It has a surface temperature of nearly 4,900 degrees Fahrenheit (2,700 degrees Celsius).

Feb 5, 2019 · Focusing on 55 Cancri e, a planet that may be covered in a lava ocean, the newest poster shows futuristic explorers gliding over the red-hot landscape in a protective bubble.

55 Cancri e NASA’s Exoplanet Exploration Program, the search for planets and life beyond our solar system. Opens in a new window Opens an external site Opens an external site in a new window Toggle navigation Close audio options ...

Researchers using NASA’s James Webb Space Telescope may have detected atmospheric gases surrounding 55 Cancri e, a hot rocky exoplanet…

1 day ago · HD 189733b: The Glass Rain Planet Artist’s impression of the deep blue planet HD 189733b. Image via Openverse. ... 55 Cancri e: The Lava World Artist’s impression of 55 Cancri e. Image via Openverse. 55 Cancri e orbits its star so closely that a year lasts only 18 hours. The intense heat has resulted in a bi-hemispherical environment: one ...