Volcano-Covered Exoplanet Discovered: LP 791-18 d Holds Potential for Atmosphere and Water'

Description: Scientists have made a remarkable discovery of an Earth-size exoplanet called LP 791-18 d, which could be covered in volcanoes. Using data from NASA's TESS and retired Spitzer Space Telescope, as well as ground-based observatories, researchers have found evidence of intense volcanic activity on this tidally locked planet. The findings, published in Nature, suggest that LP 791-18 d may maintain an atmosphere, allowing water to condense on its night side. With potential implications for astrobiology, this exoplanet presents an exciting opportunity for further study, including atmospheric investigations by the James Webb Space Telescope.
image credit-LP 791-18 d, shown here in an artist’s concept, is an Earth-size world about 90 light-years away. The gravitational tug from a more massive planet in the system, shown as a blue disk in the background, may result in internal heating and volcanic eruptions – as much as Jupiter’s moon Io, the most geologically active body in the solar system. Astronomers discovered and studied the planet using data from NASA’s Spitzer Space Telescope and TESS (Transiting Exoplanet Survey Satellite) along with many other observatories. Credits: NASA’s Goddard Space Flight Center/Chris Smith (KRBwyle)

2nd-Illustration of NASA’s Transiting Exoplanet Survey Satellite (TESS) at work. Credit: NASA’s Goddard Space Flight Center
3rd-Volcanoes erupt and clouds swirl in this animation of the Earth-size world LP 791-18 d. Credit: NASA’s Goddard Space Flight Center/Chris Smith (KRBwyle)

4th-A closer view of the above animation. Credit: NASA’s Goddard Space Flight Center/Chris Smith (KRBwyle

5th-NASA’s Spitzer Space Telescope mission concluded in January 2020 after more than 16 years of exploring the universe in infrared light. Credit: NASA/JPL-Caltech

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