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.
New research using NASA's powerful JWST telescope has identified a planet 41 light years away which may have an atmosphere. The planet is within the "habitable zone," the region around a star where temperatures make it possible ...
Astronomy
Sep 9, 2025
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University of Bristol astrophysicists are helping shed new light on an Earth-sized exoplanet 40 light years away where liquid water in the form of a global ocean or icy expanse might exist on its surface. That would only ...
Astronomy
Sep 8, 2025
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132
Since the first discovery of planets beyond the solar system in 1995, more than 6,000 exoplanets have been identified. Many of these planets have properties that differ significantly from the eight planets in our solar system. ...
Astronomy
Sep 5, 2025
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Large exoplanets are more easily detected than small ones. It's axiomatic. While large planets block out more starlight during transits, small planets block out much less, letting them hide in the overpowering glare from ...
Planetary Sciences
Sep 5, 2025
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Life is complicated, and not just in a philosophical sense. But one simple thing we know about life is that it requires energy, and to get that energy it needs certain fundamental elements. A new paper published in The Open ...
Astrobiology
Sep 2, 2025
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Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered two rocky exoplanets orbiting a nearby K-type star, known as TOI-2322. The newfound alien worlds are comparable in size to Earth and have ...
Looking for the perfect vacation? Do you crave late-night fun? PSO J318.5−22, the planet with no star where nightlife never ends, is perfect for you! Prefer some peace and a chance to catch some rays? Kepler-16b, the land ...
Planetary Sciences
Sep 2, 2025
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170
What can the galactic habitable zone (GHZ), galactic regions where complex life is hypothesized to be able to evolve, teach scientists about finding the correct stars that could have habitable planets?
Astrobiology
Sep 1, 2025
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80
The Earth supports the only known life in the universe, all of it depending heavily on the presence of liquid water to facilitate chemical reactions. While single-celled life has existed almost as long as Earth itself, it ...
Astrobiology
Sep 1, 2025
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244
Astronomers sometimes find conflicting data when trying to answer a question. This is a normal part of the scientific process, and it simply means that more data is needed to prove or disprove the theory they are trying to ...
Planetary Sciences
Aug 27, 2025
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