Ocean planets as a research area concerns the theoretical prediction, characterization, and observational identification of exoplanets with deep, global water layers potentially hundreds of kilometers thick, lacking significant exposed landmasses. This field integrates planetary formation models, high-pressure water and ice phase diagrams, interior structure and heat transport modeling, and atmospheric-ocean coupling to assess habitability and observable signatures. Research focuses on how volatile delivery, disk chemistry, and migration produce water-rich worlds, how high-pressure ice mantles affect geochemical cycling and climate regulation, and how spectroscopic biomarkers and bulk density constraints can distinguish ocean planets from terrestrial, mini-Neptune, or sub-Neptune exoplanets in current and future surveys.
Searching for life in alien oceans may be more difficult than scientists previously thought, even when we can sample these extraterrestrial waters directly.
Astrobiology
Feb 6, 2025
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97
There might be a type of exoplanet without dry land. They're called "Hycean" worlds, a portmanteau of "hydrogen" and "ocean." They're mostly or entirely covered in oceans and have thick hydrogen atmospheres.
Astrobiology
Jan 27, 2025
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36
Potentially habitable exoplanets are so incredibly common that astronomers have started to consider more unusual situations where life might arise. Perhaps life can be found on the moon of a hot Jupiter or lingering in the ...
Astrobiology
Jan 3, 2025
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75
As NASA's Europa Clipper embarks on its historic journey to Jupiter's icy moon, Europa, Dr. Matt Powell-Palm, a faculty member at Texas A&M University's Department of Mechanical Engineering, has unveiled research that could ...
Astrobiology
Dec 19, 2024
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77
Through advanced autonomy testbed programs, NASA is setting the groundwork for one of its top priorities—the search for signs of life and potentially habitable bodies in our solar system and beyond. The prime destinations ...
Space Exploration
Dec 4, 2024
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A team of astronomers has found that Venus has never been habitable, despite decades of speculation that our closest planetary neighbor was once much more like Earth than it is today.
Astrobiology
Dec 2, 2024
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356
Due to launch in the early 2030s, NASA's DAVINCI mission will investigate whether Venus—a sweltering world wrapped in an atmosphere of noxious gases—once had oceans and continents like Earth.
Planetary Sciences
Oct 17, 2024
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49
On Oct. 14 NASA's Europa Clipper Mission launched. It is the first detailed investigation of Jupiter's moon Europa—which is believed to harbor an ocean so vast that it contains more water than anywhere else in the known universe ...
Space Exploration
Oct 15, 2024
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100
With a spacecraft launching soon, the mission will try to answer the question of whether there are ingredients suitable for life in the ocean below Europa's icy crust.
Planetary Sciences
Oct 14, 2024
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