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All articles tagged with "habitability"

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habitability Articles | Developments Today

This artist's illustration shows a spinning SMBH at the center of its AGN. New research shows how AGN affect exoplanet habitability. The powerful energy can strip away atmospheres and ozone at great distances, shaping habitability in large portions of a galaxy. Image Credit: National Aeronautics and Space Administration / Jet Propulsion Laboratory-Caltech.

A new exoplanet risk factor: active supermassive black holes

A new study examines how active supermassive black holes affect exoplanet habitability.
High-energy output from AGN can strip atmospheres and erode ozone at great distances.
The findings broaden habitability from a stellar question to a galactic one.

DE

DT Editorial Team·May 24, 2026·via universetoday.com

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This artist's illustration shows a young, Sun-like star and an orbiting planet. The young star is emitting powerful x-rays that are eroding the planet's atmosphere. This atmospheric stripping likely dooms planets like this from ever being habitable. Image Credit: NASA/SAO/CXC/M. Weiss

Young Sun-Like Stars May Be Less Destructive to Planet Atmospheres Than Expected

A new study suggests young solar-mass stars may soften and dim in X-rays earlier than expected.
The result could mean less atmospheric stripping for some orbiting planets.
That shift may strengthen the scientific case for targeting Sun-like stars in habitability studies.

DE

DT Editorial Team·Apr 28, 2026·via universetoday.com

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This image shows Venus on the left and three possible atmospheres on a recently discovered exoplanet, Gliese 12b. Arid planets like Gliese 12b, even ones in habitable zones, may not have enough liquid water for habitability. Water plays an important role in Earth's carbonate-silicate cycle, which is responsible for moderating the planet's temperature. But rainfall is a critical part of the cycle, and arid planets with low water abundances may not be able to resist a greenhouse climate state. This may have been what happened with Venus. Image Credit: NASA/JPL-Caltech/R. Hurt (Caltech-IPAC)

Arid exoplanets may lose climate stability even inside habitable zones

Researchers argue that too little water can disrupt the climate-stabilizing carbon cycle on rocky planets.
The study says rainfall is critical to silicate weathering, which removes carbon from the atmosphere.
Arid worlds in habitable zones may still drift into greenhouse conditions.
The work suggests Venus may illustrate what happens when the cycle fails.

DE

DT Editorial Team·Apr 20, 2026·via universetoday.com

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