Results 21 to 30 of about 1,582,153 (384)
Modeling Repeated M Dwarf Flaring at an Earth-like Planet in the Habitable Zone: Atmospheric Effects for an Unmagnetized Planet [PDF]
Astrobiology, 2017 Understanding the impact of active M dwarf stars on the atmospheric equilibrium and surface conditions of a habitable zone Earth-like planet is key to assessing M dwarf planet habitability.
M. Tilley +4 more
semanticscholar +1 more source
Prevalence of Earth-size planets orbiting Sun-like stars [PDF]
, 2013 Determining whether Earth-like planets are common or rare looms as a touchstone in the question of life in the universe. We searched for Earth-size planets that cross in front of their host stars by examining the brightness measurements of 42,000 stars ...
Howard, Andrew W. +2 more
core +4 more sources
Surface Temperature of the Planet Earth from Satellite Data
Remote Sensing, 2020 The Intergovernmental Panel on Climate Change regular scientific assessments of global warming is based on measurements of air temperature from weather stations, buoys or ships.
José A. Sobrino +2 more
semanticscholar +1 more source
Chapter Seven extends the analysis of unequal global relations, but with special reference to the links between the human species, other species and the planet they inhabit. The concept and theories of the era of the Anthropocene are explicated in detail.
Waldron, John W.F., Molinaro, Darrin J.
+6 more sources
The Planetary Science Journal, 2021 We have collected transit times for the TRAPPIST-1 system with the Spitzer Space Telescope over four years. We add to these ground-based, HST, and K2 transit-time measurements, and revisit an N -body dynamical analysis of the seven-planet system using ...
Eric Agol +34 more
doaj +1 more source
Earth shaped by primordial H_2 atmospheres [PDF]
Nature, 2023 Thermodynamic modelling shows that Earth’s water, core density and overall oxidation state can be explained by the formation of Earth from planetary embryos with hydrogen-rich primary atmospheres and underlying magma oceans.
E. Young, A. Shahar, H. Schlichting
semanticscholar +1 more source
Zodiacal Exoplanets in Time (ZEIT). VI. A Three-planet System in the Hyades Cluster Including an Earth-sized Planet [PDF]
Astronomical Journal, 2017 Planets in young clusters are powerful probes of the evolution of planetary systems. Here we report the discovery of three planets transiting EPIC 247589423, a late-K dwarf in the Hyades (≃800 Myr) cluster, and robust detection limits for additional ...
A. Mann +13 more
semanticscholar +1 more source
The Dvaraka Initiative: Mars’s First Permanent Human Settlement Capable of Self-Sustenance
Aerospace, 2023 From the farthest reaches of the universe to our own galaxy, there are many different celestial bodies that, even though they are very different, each have their own way of being beautiful.
Arvind Mukundan +5 more
doaj +1 more source
The Humpty Dumpty Effect on Planet Earth
Frontiers in Conservation Science, 2022 Humans have treated the earth harshly. Degradation of extant ecosystems leaves little chance that they might function as they have in the past. Putting back the pieces and restoring what once existed is no longer possible even with re-wildling—an effect ...
Joel Berger +2 more
doaj +1 more source
An Earth-mass Planet in a 1 au Orbit around an Ultracool Dwarf [PDF]
, 2017 We combine Spitzer and ground-based Korea Microlensing Telescope Network microlensing observations to identify and precisely measure an Earth-mass ( ) planet OGLE-2016-BLG-1195Lb at orbiting a ultracool dwarf.
Y. Shvartzvald +34 more
semanticscholar +1 more source