Exoplanet systems as a research area investigate the formation, architecture, dynamics, and physical properties of planetary systems orbiting stars other than the Sun, integrating observational, theoretical, and computational approaches. The field encompasses detection techniques (e.g., transits, radial velocities, direct imaging, microlensing), characterization of planetary masses, radii, atmospheres, and orbits, and statistical studies of population demographics as functions of stellar type, metallicity, and environment. It also addresses disk–planet interactions, migration processes, multi-planet dynamics, and stability, with implications for planet formation theories, comparative planetology, and the occurrence and potential habitability of terrestrial and giant planets in diverse stellar contexts.
Exoplanet scientists are eagerly awaiting the discovery of an atmosphere around a terrestrial exoplanet. Not a thin, tenuous, barely perceptible collection of molecules, but a thick, robust, potentially life-supporting atmosphere. ...
Planetary Sciences
Nov 5, 2025
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39
As more and more exoplanets are discovered throughout the galaxy, scientists find some that defy explanation—at least for awhile. A new study, published in Nature, describes a process that might explain why a large portion ...
Why is it important to know about exoplanets having their atmospheres stripped while orbiting F-type stars? This is what a recent study submitted to The Astronomical Journal hopes to address as an international team of scientists ...
Planetary Sciences
Oct 30, 2025
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22
Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers have detected a new exoplanet orbiting a bright K-type star known as TOI-283. The newfound alien world, which received the designation ...
Could scientists find life in the clouds of exoplanet atmospheres? This is what a manuscripton the arXiv preprint server hopes to address as a team of researchers investigate how the biosignatures of microbes could be identified ...
Astrobiology
Oct 28, 2025
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42
Astronomers have generated the first three-dimensional map of a planet orbiting another star, revealing an atmosphere with distinct temperature zones—one so scorching that it breaks down water vapor, a team co-led by a Cornell ...
Astronomy
Oct 28, 2025
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168
An international team of researchers has just revealed the existence of three Earth-sized planets in the binary stellar system TOI-2267 located about 190 light-years away. This discovery, published in Astronomy & Astrophysics, ...
Astronomy
Oct 24, 2025
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422
The discovery of a possible "super-Earth" less than 20 light-years from our own planet is offering scientists new hope in the hunt for other worlds that could harbor life, according to an international team including researchers ...
Astrobiology
Oct 23, 2025
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177
In approximately 5 billion years, the sun will deplete its hydrogen fuel and collapse under its own gravity, becoming a white dwarf. Though Earth-sized, this dense remnant will retain much of the sun's gravitational influence.
Astronomy
Oct 22, 2025
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163
Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers from the University of California, Irvine (UCI) and elsewhere, have discovered two new exoplanets orbiting M-dwarf stars. The newfound alien worlds are ...
