Tag

Super Earth

All articles tagged with #super earth

science8 days 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

space11 days 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

space12 days 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

space2 months ago•4 min saved

Webb Maps Olivine-Rich Surface of Nearby Airless Super-Earth

JWST’s mid-infrared spectroscopy reveals LHS 3844 b, a rocky super-Earth about 50 light-years away, has a dark, olivine-rich crust with no detectable CO2 or SO2 and likely no atmosphere. The planet is roughly 30% larger than Earth, orbits its red dwarf in 11 hours, and is tidally locked, resulting in a scorching dayside and a barren surface. This demonstrates JWST’s ability to infer surface texture and geology of distant worlds, opening new possibilities for direct exoplanet terrain characterization via infrared data.

via Jalopnik|

#exoplanets #james-webb-space-telescope #lhs-3844-b

space5 months ago•75 min saved

Stellar radiation sculpts four young planets into super-Earths

Astronomers weigh four young, bloated planets around the infant star V1298 Tau and find they are extremely low density and actively losing their atmospheres to photoevaporation. Using transit timing variations, the team shows the planets are on track to shed most of their atmospheres, evolving into rocky super‑Earths or mini-Neptunes, suggesting a common outcome for such compact planetary systems.

via Space|

#exoplanets #photoevaporation #space

science6 months ago•7 min saved

Webb Telescope Reveals Surprising Atmosphere on Ancient Lava Planet

NASA's JWST has provided the strongest evidence yet that the ultra-hot super-Earth exoplanet TOI-561 b, despite its extreme conditions, possesses a thick, volatile-rich atmosphere, challenging previous assumptions about small, hot planets losing their atmospheres. The findings suggest this planet has retained its atmosphere, possibly due to a balance between atmospheric escape and magma ocean absorption, opening new questions about planetary evolution in harsh environments.

via SciTechDaily|

#atmosphere #exoplanet #james-webb-space-telescope

science8 months ago•4 min saved

Nearby Super-Earth in Habitable Zone Sparks Alien Life Search

Scientists have discovered a super-Earth exoplanet named GJ 251c only 18 light-years away, located in its star's habitable zone, making it a promising candidate for future studies on extraterrestrial life, although more data is needed to confirm its atmosphere and potential habitability.

via ScienceAlert|

#astrobiology #exoplanet #gj-251c

science10 months ago•3 min saved

Nearby Star Gliese 536 Hosts Second Exoplanet

Astronomers have discovered a second exoplanet orbiting the nearby star Gliese 536 using radial velocity measurements, revealing a low-mass planet about 5.89 times the Earth's mass with a 32.76-day orbit, making it a promising target for atmospheric studies.

via Phys.org|

#astronomy #exoplanet #gliese-536

science11 months ago•4 min saved

Groundbreaking Discovery Reveals Potentially Habitable Earth 2.0

Astronomers have discovered a potentially habitable super-Earth, Kepler-725c, using the novel Transit Timing Variation (TTV) method, which allows detection of planets that are otherwise difficult to find, especially those in the habitable zone of Sun-like stars, advancing the search for Earth-like worlds beyond our solar system.

via The Daily Galaxy|

#exoplanets #habitable-zone #kepler-725c

science11 months ago•6 min saved

Five Rocky Planets Discovered Around a Small Red Dwarf, Including a Potentially Habitable Super-Earth

Astronomers have discovered five rocky planets around the red dwarf star L 98-59, including a super-Earth in the habitable zone, providing valuable insights into planetary formation and potential habitability around low-mass stars, with further studies planned using the James Webb Space Telescope.

via Universe Today|

#exoplanets #habitable-zone #l-98-59

science11 months ago•3 min saved

Nearby Red Dwarf Hosts Multiple Rocky and Potentially Habitable Exoplanets

A new super-Earth exoplanet, L 98-59 f, located 35 light-years away in the habitable zone of its star, has been discovered, raising the possibility of supporting liquid water and life, with further atmospheric studies planned using advanced telescopes like JWST.

via Space|

#exoplanet #habitable-zone #l-98-59

science1 year ago•3 min saved

Scientists Find a Fast-Orbiting Planet and a Slow-Growing Ice World

Astronomers discovered a unique planetary system around star WASP-132, featuring a super-Earth with a 24-hour orbit and a distant icy giant taking five years to orbit, providing insights into planetary formation and astrochemistry.

via The Daily Galaxy|

#exoplanets #icy-giant #planetary-system

science1 year ago•4 min saved

NASA Discovers Water-Rich Super-Earth Near Our Solar System

NASA's TESS has discovered a super-Earth, TOI‑1846 b, orbiting a nearby red dwarf star, which may have a layer of dense ice and a shallow ocean, making it a promising target for studying planetary atmospheres and potential habitability.

via Earth.com|

#exoplanet #nasa #ocean

science1 year ago•3 min saved

Nearby Star Hosts Newly Discovered Super-Earth Exoplanet

Astronomers using NASA's TESS have discovered a super-Earth exoplanet, TOI-1846 b, orbiting a nearby M dwarf star about 154 light years away. The planet is roughly twice Earth's size, four times its mass, and likely water-rich, orbiting its star every 3.93 days. The discovery adds to TESS's catalog of over 7,600 candidate exoplanets and highlights the potential for further studies to determine its composition.

via Phys.org|

#astronomy #exoplanet #science

science1 year ago•4 min saved

Scientists Discover a Potentially Habitable Super-Earth in a New Exoplanetary Frontier

Scientists have discovered a super-Earth named Kepler-725c in the habitable zone of its star using the transit timing variation method, which allows detection of planets that are otherwise difficult to observe directly. This planet, about 2,472 light years away, could potentially support life due to its location and size, marking a significant step in the search for Earth-like worlds beyond our solar system.

via Earth.com|

#exoplanets #habitable-zone #kepler-725c