Hycean worlds are also called ocean worlds. They're planets covered in oceans that also have thick hydrogen atmospheres.

The researches say that the Hycean Habitable Zone (HHZ), when compared to the terrestrial habitable zone, may include smaller ...

Astronomers have added two more exoplanets to a growing study aimed at finding out whether rocky worlds near small, faint ...

Southwest Research Institute has collaborated with Yale University to summarize the scientific community's notable progress ...

The strength of Earth’s magnetic field and the amount of oxygen in its atmosphere seem to be correlated—and scientists want ...

When the Sun expands into a red giant, it will swallow the inner solar system and raise the temperature in the outer regions.

Based on the Transit Timing Variation (TTV) technique for the first time, the super-Earth, Kepler-725c, with 10 times the mass of the Earth, has been detected within the habitable zone of the Sun-like ...

During the red giant phase, both the Sun and Jupiter will shine brighter and become hotter. However, its moon Europa is ...

The idea of terraforming Mars—essentially reshaping the planet to support Earth life—has captured imaginations for decades.

The search for life beyond Earth is a holy grail quest for many experts, but finding where to look is a core issue.

This story is the first article of a two-part Mongabay mini-series exploring possible climate futures. Read Part One.