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.
For the first time, international researchers have pinpointed the moment when planets began to form around a star beyond the sun. Using the ALMA telescope, in which the European Southern Observatory (ESO) is a partner, and ...
Astronomy
Jul 16, 2025
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The search for habitable exoplanets is a key priority and sits at the pinnacle of exoplanet science. The science community stated that clearly in the 2020 Survey on Astronomy and Astrophysics 2020 (Astro2020). That survey ...
Planetary Sciences
Jul 16, 2025
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36
Macquarie University astronomers have tracked an extreme planet's orbital decay, confirming it is spiraling toward its star in a cosmic death dance that could end in three possible ways.
Astronomy
Jul 15, 2025
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50
Our circumstances here on the wondrous, life-supporting Earth can give us a false understanding of what the universe is really like. But our blue-skied, temperate planet is the extreme exception when it comes to other worlds. ...
Planetary Sciences
Jul 15, 2025
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85
In new research, University of California, Irvine astronomers describe how more than 200 known exoplanets are likely much larger than previously thought. It's a finding that could change which distant worlds researchers consider ...
Planetary Sciences
Jul 14, 2025
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91
Sometimes, in order to support an idea, you first have to discredit alternative, competing ideas that could take resources away from the one you care about. In the scientific community, one of the most devastating ways you ...
Astronomy
Jul 14, 2025
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59
Though our solar system and the movement of its planets appear relatively sedate, there are many things that could upset the balance. Anything with enough mass that got close enough could disrupt planetary orbits. This includes ...
Astronomy
Jul 14, 2025
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60
Astronomers have detected a giant exoplanet—between three and ten times the size of Jupiter—hiding in the swirling disk of gas and dust surrounding a young star.
Astronomy
Jul 14, 2025
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355
On Earth, water is so intertwined with life that our search for life on other worlds is essentially a search for water. When scientists find exoplanets around distant stars, a primary consideration is if they're in the stars' ...
Astrobiology
Jul 10, 2025
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44
The question of how life began has captivated humanity for millennia. Now, a team of scientists are preparing to use NASA's upcoming Habitable Worlds Observatory (HWO) to test different theories about life's origins by studying ...
Astrobiology
Jul 10, 2025
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