A nearby exoplanet called GJ 3378b may be capable of supporting habitable conditions, according to new research. The planet is classified as a super-Earth, meaning it is larger and more massive than our world, and updated measurements are changing scientists’ view of its basic properties.
Researchers say GJ 3378b is smaller than they first believed. The new data also show that the planet completes its orbit in less time than earlier estimates suggested, an adjustment that could affect how astronomers evaluate its temperature and overall environment.
The planet is described as having a minimum mass a little more than twice that of Earth. It also appears to orbit within its star’s habitable zone, the range where conditions could allow liquid water to exist if other factors are favorable. That does not confirm the planet is Earth-like, but it does make GJ 3378b an important target for future study.
The findings highlight why nearby super-Earths draw so much attention from astronomers. As measurements of GJ 3378b become more precise, researchers can better judge whether this world belongs among the most promising potentially habitable exoplanets identified so far.
