Results 11 to 20 of about 1,582,153 (384)

GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star [PDF]

open access: yesScience, 2021
Description A nearby iron-rich sub-Earth planet The mass and radius of an exoplanet determine its mean density, which provides information about the possible interior structure. Lam et al.
K. Lam   +77 more
semanticscholar   +1 more source

Evidence for the volatile-rich composition of a 1.5-Earth-radius planet [PDF]

open access: yesNature Astronomy, 2022
The population of planets smaller than approximately 1.7 Earth radii ( R _⊕) is widely interpreted as consisting of rocky worlds, generally referred to as super-Earths.
C. Piaulet   +20 more
semanticscholar   +1 more source

Venus, the Planet: Introduction to the Evolution of Earth’s Sister Planet

open access: yesSpace Science Reviews, 2023
Venus is the planet in the Solar System most similar to Earth in terms of size and (probably) bulk composition. Until the mid-20th century, scientists thought that Venus was a verdant world—inspiring science-fictional stories of heroes battling megafauna
J. O'Rourke   +12 more
semanticscholar   +1 more source

EM-Earth: The Ensemble Meteorological Dataset for Planet Earth

open access: yesBulletin of The American Meteorological Society - (BAMS), 2022
Gridded meteorological estimates are essential for many applications. Most existing meteorological datasets are deterministic and have limitations in representing the inherent uncertainties from both the data and methodology used to create gridded ...
Guoqiang Tanga   +2 more
semanticscholar   +1 more source

The First Habitable-zone Earth-sized Planet from TESS. I. Validation of the TOI-700 System [PDF]

open access: yesAstronomical Journal, 2020
We present the discovery and validation of a three-planet system orbiting the nearby (31.1 pc) M2 dwarf star TOI-700 (TIC 150428135). TOI-700 lies in the TESS continuous viewing zone in the Southern Ecliptic Hemisphere; observations spanning 11 sectors ...
E. Gilbert   +94 more
semanticscholar   +1 more source

A candidate super-Earth planet orbiting near the snow line of Barnard’s star [PDF]

open access: yesNature, 2018
Barnard’s star is a red dwarf, and has the largest proper motion (apparent motion across the sky) of all known stars. At a distance of 1.8 parsecs1, it is the closest single star to the Sun; only the three stars in the α Centauri system are closer ...
I. Ribas   +71 more
semanticscholar   +1 more source

Water vapour in the atmosphere of the habitable-zone eight-Earth-mass planet K2-18 b [PDF]

open access: yesNature Astronomy, 2019
In the past decade, observations from space and the ground have found water to be the most abundant molecular species, after hydrogen, in the atmospheres of hot, gaseous extrasolar planets1–5. Being the main molecular carrier of oxygen, water is a tracer
A. Tsiaras   +4 more
semanticscholar   +1 more source

Big Earth Data science: an information framework for a sustainable planet

open access: yesInternational Journal of Digital Earth, 2020
The digital transformation of our society coupled with the increasing exploitation of natural resources makes sustainability challenges more complex and dynamic than ever before.
Huadong Guo   +12 more
semanticscholar   +1 more source

Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization [PDF]

open access: yesAstronomy & Astrophysics, 2019
We report the detection of a transiting Earth-size planet around GJ 357, a nearby M2.5 V star, using data from the Transiting Exoplanet Survey Satellite (TESS).
R. Luque   +75 more
semanticscholar   +1 more source

Discovery of a bright microlensing event with planetary features towards the Taurus region: a super-Earth planet [PDF]

open access: yes, 2018
The transient event labeled as TCP J05074264+2447555 recently discovered towards the Taurus region was quickly recognized to be an ongoing microlensing event on a source located at distance of only $700-800$ pc from Earth. Here, we show that observations
A. Nucita   +7 more
semanticscholar   +1 more source

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