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Gj 3378b

All articles tagged with #gj 3378b

space1 month ago•4 min saved

Two-Earth-mass World 25 Light-Years Away Sparks Life-Hunting Hopes

Astronomers refined properties for GJ 3378b, a planet ~2.3 Earth masses orbiting in its star's habitable zone about 25 light-years away, receiving roughly 90% of Earth's solar energy. Its potential to sustain liquid water is promising, but an atmosphere—crucial for habitability—has not yet been confirmed; future missions like NASA's Habitable Worlds Observatory (planned for the 2040s) could image the planet and search for biosignatures. The discovery, made with ground-based instruments, underscores how nearby systems are key targets in the search for life beyond Earth.

via The Times of India|

#astronomy #biosignatures #exoplanet

space1 month ago•2 min saved

Nearby Earth-Sized World in Red Dwarf’s Habitable Zone Prompts Life Talk

A reanalysis of exoplanet GJ 3378b, 25 light-years away, shows it has about twice Earth’s mass and lies in its red dwarf’s habitable zone, making it a strong nearby candidate for life-supporting conditions. Its atmosphere and pressure are still uncertain, and debates about red-dwarf habitability—along with potential tidal locking and stellar flares—mean more data are needed before confirming its ability to support life.

via Futurism|

#earth-like-mass #exoplanet #gj-3378b

science1 month ago•46 min saved

Nearby rocky super-Earth found in habitable zone around a red dwarf

Astronomers refined the mass and orbit of the nearby exoplanet GJ 3378b, a rocky super-Earth about 2.3 Earth masses that orbits a red dwarf every 21 days at roughly 25 light-years away, placing it in the habitable zone where liquid water could exist if it retains an atmosphere; however, stellar winds from the red dwarf may strip the atmosphere, and the planet does not transit, limiting atmospheric study and pushing biosignature confirmation to future observatories such as NASA's Habitable Worlds Observatory planned for the 2040s.

via Yahoo|

#exoplanet #gj-3378b #habitable-zone

space1 month ago•4 min saved

Nearby Super-Earth Could Harbor Life in Red Dwarf's Habitable Zone

A refined analysis places GJ 3378b at about 2.3 Earth masses with a 21‑day orbit, situating it in the habitable zone of a nearby red-dwarf star about 25 light‑years away. Detected with infrared radial velocities using the Habitable-zone Planet Finder on the Hobby‑Eberly Telescope, the discovery highlights red dwarfs as fertile ground for rocky, potentially life-bearing worlds, though stellar activity and a possibly thin atmosphere complicate habitability. Upcoming observatories like GMT, ELT, and the Habitable Worlds Observatory could enable direct observations and biosignature searches to assess its true habitability.

via Universe Today|

#exoplanets #gj-3378b #habitable-zone

space1 month ago•24 min saved

Earth’s Next-Door Exoplanet GJ 3378b: A Close, Possibly Habitable World

Astronomers have identified a nearby exoplanet, GJ 3378b, about 25 light-years away and roughly twice Earth’s size, orbiting in the star’s Goldilocks zone where liquid water could exist; its atmosphere is not yet known, and researchers say further observations are needed to assess habitability and search for biosignatures, with NASA planning a future Habitable Worlds Observatory to probe atmospheric life-signs.

via New York Post|

#exoplanet #gj-3378b #goldilocks-zone

space1 month ago•7 min saved

Nearby 2.3-Earth-Mass World in Habitable Zone Sparks Habitability Hopes

Astronomers refined the mass of the nearby exoplanet GJ 3378b to about 2.3 Earth masses, placing it in the rocky super-Earth category inside its red dwarf's habitable zone at roughly 25 light-years away. While this makes it one of the closest likely Earth-like worlds, whether it has an atmosphere remains unknown; without one, liquid surface water is unlikely. It is a prime target for future biosignature searches as scientists seek to determine if we are alone.

via ScienceAlert|

#biosignatures #exoplanet #gj-3378b

science1 month ago•50 min saved

Nearby 25-light-year world could host oceans in its star’s habitable zone

Astronomers refine the mass of exoplanet GJ 3378b to about 2.3 Earth masses, placing it in the rocky super-Earth category and locating it in the habitable zone of a nearby red dwarf 25 light-years away. It orbits its star every 21 days, suggesting temperatures that could support liquid water, but the planet’s atmosphere remains uncertain due to intense stellar radiation; since it does not transit, atmospheric confirmation may have to wait for future missions like NASA’s Habitable Worlds Observatory in the 2040s.

via Yahoo|

#biosignatures #exoplanet #gj-3378b

space1 month ago•103 min saved

Nearby Habitable-Zone Exoplanet Sparks Life-Hopes

Astronomers refined the mass and orbit of GJ 3378b, a 2.3‑Earth-mass exoplanet around a nearby red dwarf about 25 light-years away in Camelopardalis. With a 21-day orbit, it sits in the star’s habitable zone and could be rocky, but its atmosphere and true habitability remain uncertain because it does not transit its star. Atmosphere confirmation awaits future instruments like the Habitable Worlds Observatory (targeted for the 2040s) and JWST observations, all while red-dwarf radiation poses challenges—yet this nearby world is one of our best chances to study potentially habitable exoplanets.

via Space|

#exoplanets #gj-3378b #habitable-zone

science1 month ago•12 min saved

Nearby Super-Earth GJ 3378b Might Be More Earth-Like—and Habitable

New radial-velocity observations revise exoplanet GJ 3378b’s minimum mass to about 2.3 Earth masses and shorten its orbital period to ~21 days, reclassifying it as a rocky 'super-Earth' just 25 light-years away and potentially more Earth-like and habitable than previously thought.

via NDTV|

#astronomy #exoplanets #gj-3378b