Results 21 to 30 of about 1,315 (165)
A scientometric prediction of the discovery of the first potentially habitable planet with a mass similar to Earth. [PDF]
PLoS ONE, 2010 BACKGROUND: The search for a habitable extrasolar planet has long interested scientists, but only recently have the tools become available to search for such planets.
Samuel Arbesman, Gregory Laughlin
doaj +1 more source
Prospects for Cryovolcanic Activity on Cold Ocean Planets
The Astrophysical Journal, 2023 We have estimated total internal heating rates and depths to possible subsurface oceans for 17 planets that may be cold ocean planets, low-mass exoplanets with equilibrium surface temperatures and/or densities that are consistent with icy surfaces and a ...
Lynnae C. Quick +4 more
doaj +1 more source
The Direct Mid-infrared Detectability of Habitable-zone Exoplanets around Nearby Stars
The Astronomical Journal, 2023 Giant planets within the habitable zones of the closest several stars can currently be imaged with ground-based telescopes. Within the next decade, the Extremely Large Telescopes (ELTs) will begin to image the habitable zones of a greater number of ...
Zach Werber, Kevin Wagner, Dániel Apai
doaj +1 more source
The Detection and Characterization of Extrasolar Planets
Challenges, 2014 We have now confirmed the existence of > 1800 planets orbiting stars other thanthe Sun; known as extrasolar planets or exoplanets. The different methods for detectingsuch planets are sensitive to different regions of parameter space, and so, we are ...
Ken Rice
doaj +1 more source
A Catalog of Habitable Zone Exoplanets
The Astronomical Journal, 2023 The search for habitable planets has revealed many planets that can vary greatly from an Earth analog environment. These include highly eccentric orbits, giant planets, different bulk densities, relatively active stars, and evolved stars.
Michelle L. Hill +7 more
doaj +1 more source
Building of a Habitable Planet [PDF]
, 2007 Except the old Jack Hills zircon crystals, it does not exit direct record of the first 500 Ma of the Earth history. Consequently, the succession of events that took place during this period is only indirectly known through geochemistry, comparison with other telluric planets, and numerical modelling. Just after planetary accretion several episodes were
Martin, H. +6 more
openaire +3 more sources
The Planetary Science Journal, 2023 Low water activity limits the habitability of aqueous environments, and salts present on Mars are known to reduce water activity. As environmental brines are not pure solutions of a single salt, predicting their water activity is difficult without direct
Adam H. Stevens, Charles S. Cockell
doaj +1 more source
Habitable Zones in Binary Star Systems: A Zoology
Galaxies, 2020 Several concepts have been brought forward to determine where terrestrial planets are likely to remain habitable in multi-stellar environments. Isophote-based habitable zones, for instance, rely on insolation geometry to predict habitability, whereas ...
Siegfried Eggl +2 more
doaj +1 more source
Biosignatures Search in Habitable Planets
Galaxies, 2019 The search for life has had a new enthusiastic restart in the last two decades thanks to the large number of new worlds discovered. The about 4100 exoplanets found so far, show a large diversity of planets, from hot giants to rocky planets orbiting small
Riccardo Claudi, Eleonora Alei
doaj +1 more source
Exoplanets beyond the Conservative Habitable Zone. II. Occurrence
The Astrophysical JournalWe show that the extension of the habitable zone (HZ) due to the presence of liquid water on the nightside of tidally locked planets, calculated in earlier works, significantly increases the number of potentially habitable planets.
Amri Wandel
doaj +1 more source