LP 791-18 b Archives

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)

Astrogeology, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release

A Potentially Volcano-Covered Earth-Size World Discovered

by Keith CowingMay 17, 2023April 14, 2024

Astronomers have discovered an Earth-size exoplanet, or world beyond our solar system, that may be carpeted with volcanoes. Called LP 791-18 d, the planet could undergo volcanic outbursts as often […]

LP 791-18 d, illustrated here, is an Earth-size world about 86 light-years away. The gravitational tug from a more massive planet in the system, shown as a blue dot in the background, may result in internal heating and volcanic eruptions on this exoplanet – as much as Jupiter’s moon Io, the most geologically active body in the Solar System. CREDIT NASA’s Goddard Space Flight Center/Chris Smith (KRBwyle)

Astronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Press Release

LP 791-18 d: A Terrestrial Exoplanet – With Volcanoes

by Keith CowingMay 17, 2023May 17, 2023

A large international team led by astronomers at the Trottier Institute for Research on Exoplanets at Université de Montréal (UdeM) today announced in the journal Nature the discovery of a […]

LP 791-18 b

A Potentially Volcano-Covered Earth-Size World Discovered

LP 791-18 d: A Terrestrial Exoplanet – With Volcanoes

Cracks In A Martian Crater’s Ice

Stellar Tidal Systematics In Apsidal-motion Searches For Circumbinary Planets: CH Ind And SW CMa

Chondrule Formation In The Outer Disk From The Primary Three-dimensional Chemical Composition Of CM Chondrules

Habitable Worlds Observatory’s Concept and Technology Maturation: Initial Feasibility and Trade Space Exploration

First Look at a Time-Series Observation with New NIRISS SOSS Multistripe Subarrays