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Astronomers discover a super-Earth orbiting a nearby red dwarf

Phys · · 539 words · By Tomasz Nowakowski

Astronomers from Italy and Brazil have discovered a super-Earth exoplanet, Ross 318 b, orbiting a red dwarf star 28 light years away. The planet is approximately 6.21 Earth masses and is located within the conservative habitable zone, making it a candidate for future atmospheric study with the James Webb Space Telescope.

open_in_new Read the original article: https://phys.org/news/2026-05-astronomers-super-earth-orbiting-nearby.html

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Propaganda Score
confidence: 100%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkFact-Check Results

12 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

check_circle Corroborated 5
info Single Source 2
verified Verified 2
schedule Pending 2
help Insufficient Evidence 1
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“Astronomers from Italy and Brazil have investigated a nearby red dwarf star known as Ross 318 and have discovered an exoplanet orbiting this star, which is at least six times more massive than Earth.”
CORROBORATED
Multiple web search results confirm the discovery of an exoplanet (Ross 318 b) orbiting the red dwarf Ross 318 with a minimum mass about six times that of Earth.
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web search NEUTRAL — Comparison of the size of exoplanets orbiting Kepler-37 to Mercury, Mars and Earth. An exoplanet or extrasolar planet is a planet outside the Solar System.
https://en.wikipedia.org/wiki/Exoplanet
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web search NEUTRAL — Ross 318 (Gliese 48) is a red dwarf star with strong magnetic activity and a rotation period of about fifty-one and a half days.They discovered a planet, Ross 318 b (Gliese 48 b), which has a minimum …
https://www.stellarcatalog.com/news/ross-318-temperate-super…
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web search NEUTRAL — Ross 318 is an M3.5V red dwarf – a relatively cool, low-mass, M-class star – with significant magnetic activity and a rotation period of around 51.5 days. This can complicate exoplanet searches, becau…
https://www.futuretimeline.net/blog/2026/05/19-temperate-sup…
info
“The discovery is reported in a research paper published May 11 on the arXiv preprint server.”
SINGLE SOURCE
While the discovery of Ross 318 b is confirmed, the specific date of May 11 and the arXiv server are not explicitly detailed in the provided snippets, although a preprint platform (Preprints.org) is mentioned generally.
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web search NEUTRAL — The Ross 318 (TIC 379084450) system, an M3.5V red dwarf located at a distance of 8.58 pc (28.01 light-years) from the Solar System (Gaia Collaboration et al., 2021), repre-sents an ideal case study to…
https://philarchive.org/archive/CORDAC-3
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web search NEUTRAL — Ross 318 b, a temperate super-Earth, orbits a red dwarf every 39.6 days. It does not transit but lies in the habitable zone, making it a key target for future study.While it may not contain all the st…
https://www.stellarcatalog.com/study.php?studyID=102135
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web search NEUTRAL — Preprints.org is a multidisciplinary platform providing a preprinting service dedicated to making early research permanently available and citable.
https://www.preprints.org/
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“Located just 28 light years away from Earth, Ross 318 (also known as Gliese 48, or TIC 379084450) is a red dwarf star of spectral type M3.5V.”
CORROBORATED
Multiple sources confirm Ross 318 is a red dwarf located 28 light-years away and is also known as Gliese 48. One source explicitly mentions the M3.5V spectral type.
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web search NEUTRAL — In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffrac…
https://en.wikipedia.org/wiki/Stellar_classification
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web search NEUTRAL — Gliese 48 ye una estrella na constelación de Cassiopeia. Visualmente alcontrar ente 31 Cassiopeiae y 23 Cassiopeiae, casi equidistante ente dambes. De magnitú aparente +9,96, nun ye observable a simpl…
https://ast.wikipedia.org/wiki/Gliese_48
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web search NEUTRAL — ross 318 b temperate super earth red dwarf. A temperate super-Earth has been reported around Ross 318, a small red dwarf star located 8.58 parsecs, or 28 light-years, from the Solar System.
https://www.futuretimeline.net/blog/2026/05/19-temperate-sup…
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“The star has an orbital period of approximately 51.5 days and an effective temperature of 3,450 K”
CORROBORATED
Two independent sources confirm the stellar rotation period of Ross 318 is approximately 51.5 days. Note: The claim says 'orbital period' of the star, which is a terminology error (stars rotate, they don't have an orbital period in this context), but the numerical value 51.5 days for rotation is verified.
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web search NEUTRAL — The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object.This is longer than the sidereal period of its orbit aro…
https://en.wikipedia.org/wiki/Orbital_period
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web search NEUTRAL — Abstract: Ross 318 is an M3.5V red dwarf exhibiting significant magnetic activity and a stellar rotation period of ∼ 51.5 d. In this work we present a systematic re-analysis of radial.
https://philarchive.org/archive/CORDAC-3
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web search NEUTRAL — (2021): Ross 318 has a long rotation period above 50 d, for which signals are hard to detect, particularly in chromospheric emission lines (Fuhrmeister et al.We show the GLS periodograms of all our in…
https://www.aanda.org/articles/aa/full_html/2022/07/aa36102-…
info
“A team of astronomers led by Giuseppe Conzo from the amateur astronomy association Gruppo Astrofili Palidoro (GAP) decided to investigate Ross 318”
SINGLE SOURCE
The provided evidence for Giuseppe does not mention Giuseppe Conzo or Gruppo Astrofili Palidoro; it lists unrelated people named Giuseppe.
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web search NEUTRAL — Giuseppe is the Italian form of the given name Joseph, from Latin Iōsēphus from Ancient Greek Ἰωσήφ (Iōsḗph), from Hebrew יוסף. The feminine form of the name is Giuseppa or Giuseppina. People with the…
https://en.wikipedia.org/wiki/Giuseppe
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web search NEUTRAL — Giuseppe Zanotti ® Official Website - Learn about Giuseppe Zanotti’s universe: shoes, sneakers, bags, jewels, accessories and much more. Free delivery.
https://www.giuseppezanotti.com/us/
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web search NEUTRAL — Menu for Giuseppes Depot Restaurant Pizza E Calzone toppings:pepperoni, sausage, ground beef, green pepper, onion, black olive, green olive, pineapple, ham, jalapeno ...
https://www.yelp.com/menu/giuseppes-depot-restaurant-colorad…
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“they conducted a systematic re-analysis of radial velocity (RV) data from the CARMENES spectrograph and decade-long High Resolution Echelle Spectrometer (HIRES) observations.”
CORROBORATED
Multiple sources confirm the use of radial velocity (RV) data from the CARMENES spectrograph and HIRES observations for the study of Ross 318.
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web search NEUTRAL — velocities (RV) from CARMENES and decade-long HIRES observations, integrated with TESS space-based photometry. We identify a terrestrial-mass planet, Ross 318 b, with an orbital.
https://arxiv.org/pdf/2605.11123
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web search NEUTRAL — The Calar Alto high-Resolution search for M dwarfs with Exo-earths with Near-infrared and optical Échelle Spectrographs (CARMENES) instrument is searching for periodic radial-velocity (RV) variations …
https://www.aanda.org/articles/aa/full_html/2022/07/aa36102-…
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web search NEUTRAL — CARMENES data The two CARMENES spectrographs are grism cross-dispersed, white pupil, échelle spectrograph working in quasi-Littrow mode using a two-beam, two-slice image slicer.
https://scispace.com/pdf/the-carmenes-search-for-exoplanets-…
verified
“Their study was complemented by data from the Transiting Exoplanet Survey Satellite (TESS).”
VERIFIED
The research paper snippet explicitly states that the analysis was integrated with TESS space-based photometry.
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web search NEUTRAL — Need a Study.com Account? Simple & engaging videos to help you learn Unlimited access to 88,000+ lessons The lowest-cost way to earn college credit
https://study.com/academy/login.html
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web search NEUTRAL — Master any subject with Studley AI. Trusted by more than 2,000,000 top students. Create beautiful and interactive notes, flashcards, quizzes and podcasts from any content. Study smarter, not harder.
https://www.studley.ai/
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web search NEUTRAL — How do you want to study? Master whatever you’re learning with Quizlet’s interactive flashcards, practice tests, and study activities.
https://quizlet.com/
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“The analysis resulted in the detection of an exoplanet orbiting this star every 39.63 days, which received the designation Ross 318 b.”
CORROBORATED
Multiple sources confirm the detection of Ross 318 b with an orbital period of approximately 39.6 to 39.63 days.
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web search NEUTRAL — An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and the first detection around a main-sequence star w…
https://en.wikipedia.org/wiki/Exoplanet
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web search NEUTRAL — Ross 318 b represents an emblematic example of how the synergy between multi-instrumental spectroscopy and high-precision photometry resolves ambiguities induced by stellar activity.
https://philarchive.org/archive/CORDAC-3
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web search NEUTRAL — В результате была обнаружена планета Ross~318 b с минимальной массой около 6,21 масс Земли и орбитальным периодом 39,63 дня. Планета относится к суперземлям и находится в консервативной зоне обитаемос…
https://dzen.ru/a/agQGh4wQXkEAPbyh
help
“The newfound extrasolar world is separated from its host by about 0.16 AU”
INSUFFICIENT EVIDENCE
No evidence was provided in the search results regarding the specific orbital distance (0.16 AU) of Ross 318 b.
verified
“has a minimum mass of 6.21 Earth masses.”
VERIFIED
One source explicitly states the planet has a minimum mass of 6.21 Earth masses.
schedule
“Its radius is predicted to be some 1.74 Earth radii.”
PENDING
schedule
“The equilibrium temperature of Ross 318 b is estimated to be around 237 K.”
PENDING
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.