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27. 10. 2026
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V1298 Tau b showed helium absorption during all four observed transits across four years, but its active host star may affect the signal. The latest findings also point to silicate clouds on TOI-561 b, a warped dust ring around CQ Tau, and a giant planet candidate near Boyajian's star that may be surrounded by vast rings. New atmospheric models reveal why gas compositions can vary across hot giant planets.
Chemical differences in binary star pair suggest planetary engulfment
icon6. 6. 2026
iconStars | Exoplane
Image: Chemical differences in binary star pair suggest planetary engulfment
Stars born from the same cloud in a binary system are generally expected to have identical chemical compositions. However, some binary systems exhibit unexplained chemical differences, leading researchers to debate whether these anomalies originate from their birth environment or are the result of external events. This study examines the binary pair HD 129171 and HD 129209, which show significant differences in their abundances of iron, lithium, and other elements. To investigate these differ...
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Planetary engulfment may explain the chemical paradox in the binary system HD 81809
icon4. 6. 2026
iconStars | Exoplane
Image: Planetary engulfment may explain the chemical paradox in the binary system HD 81809
The binary star system HD 81809 presents a significant chemical mystery, as its two components exhibit a striking difference in metallicity — the abundance of elements heavier than hydrogen and helium. While the primary star has a low metallicity, the secondary star, HD 81809B, shows a metallicity closer to that of our Sun. Scientists are investigating whether this anomaly could be the result of the secondary star having engulfed one or more plan...
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JWST observations confirm magnesium silicate clouds in the atmosphere of HD 209458b
icon4. 6. 2026
iconStars | Exoplane
Image: JWST observations confirm magnesium silicate clouds in the atmosphere of HD 209458b
HD 209458b is perhaps the most famous hot Jupiter, having been the first planet where researchers successfully measured atmospheric composition and discovered hints of aerosol-related effects. These massive, hot gas giants provide essential insights into planetary atmospheres, but confirming the specific composition of their clouds has remained a challenge. New observations from the James Webb Space Telescope (JWST) have now directly measured the...
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Updated modelling framework reveals the orbital alignment of the hot Jupiter TOI-135 b
icon4. 6. 2026
iconStars | Exoplane
Image: Updated modelling framework reveals the orbital alignment of the hot Jupiter TOI-135 b
Understanding the orientation of an exoplanet's orbit relative to its host star's rotation provides essential clues about the system's past. A key method for measuring this alignment is the Rossiter-McLaughlin effect, which occurs when a transiting planet blocks different parts of a rotating star, creating a characteristic shift in the star's spectral lines. Researchers have now introduced an improved modelling framework within the exoplanet anal...
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Pan-Pacific survey clarifies the nature of six candidate companions orbiting evolved stars
icon4. 6. 2026
iconStars | Exoplane
Image: Pan-Pacific survey clarifies the nature of six candidate companions orbiting evolved stars
The Pan-Pacific Planet Search was a six-year survey that monitored 164 southern evolved stars to detect potential orbiting companions using radial-velocity measurements, which track the slight wobble of a star caused by the gravitational pull of orbiting objects. In their final data release, researchers aimed to resolve the true nature of six speculative candidates that had been identified during the survey. By combining new radial-velocity da...
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High-resolution spectroscopy reveals gaseous silicon in the atmosphere of brown dwarf TWA 5 B
icon4. 6. 2026
iconStars | Exoplane
Image: High-resolution spectroscopy reveals gaseous silicon in the atmosphere of brown dwarf TWA 5 B
TWA 5 B is a directly imaged sub-stellar companion, a type of object often categorized as a gas giant or brown dwarf. Understanding the chemical composition of these atmospheres is essential for learning how they formed. Silicon is a particularly important element, as it is a refractory material — a substance that remains solid at relatively high temperatures — and it plays a major role in the formation of magnesium-silicate clouds, which are sim...
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ALMA observations detect complex carbon-chain molecule HC5N in the TW Hya protoplanetary disk
icon4. 6. 2026
iconStar
Image: ALMA observations detect complex carbon-chain molecule HC5N in the TW Hya protoplanetary disk
Protoplanetary disks, the rotating disks of gas and dust that surround young stars, are the environments where planets are born. Scientists study these disks to understand the chemical ingredients available during planet formation, which can provide clues about the potential for life. A recent investigation has identified a new, complex molecule within the disk surrounding the star TW Hya, known as a Class II disk, which is in a mature phase of d...
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JWST observations reveal water vapor in the atmosphere of young planet V1298 Tauri c
icon4. 6. 2026
iconStars | Exoplanets | James Webb Space Telescope | Planetary atmospheres | Super-Earth
Image: JWST observations reveal water vapor in the atmosphere of young planet V1298 Tauri c
V1298 Tauri c is a young super-Earth progenitor — an infant version of a planet like those commonly found in our galaxy — orbiting a star about 23 million years old. These young, inflated planets are crucial for understanding how planetary atmospheres form and change over time, unlike older planets whose atmospheres may have already settled. As part of the KRONOS research program, space telescope observations have now analyzed the light passing t...
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Radial velocity study puts upper limits on massive moons around Beta Pictoris b
icon4. 6. 2026
iconStars | Exoplanets | Exomoo
Image: Radial velocity study puts upper limits on massive moons around Beta Pictoris b
Beta Pictoris b is a massive gas giant planet directly imaged in orbit around a star, and its orbit is aligned in a way that makes it a prime target for studying potential large moons, known as exomoons. By monitoring the radial velocity — the speed at which the planet moves toward or away from us along our line of sight — of this distant world, researchers aimed to detect the gravitational tug caused by an orbiting moon. The observations were...
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Gliese 9827 d and TOI-238 b reveal secrets of mini-Neptune atmospheres
icon3. 6. 2026
iconStars | Exoplane
Image: Gliese 9827 d and TOI-238 b reveal secrets of mini-Neptune atmospheres
This study investigates the atmospheres of warm and hot mini-Neptunes, specifically Gliese 9827 d and TOI-238 b, which may have water- or metal-rich compositions. It examines how these compositions affect atmospheric photochemistry and mass loss rates, finding that higher water/metal content can significantly reduce atmospheric escape, making these atmospheres more stable over time. Using the CHAIN model, researchers simulated the upper atmosp...
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Recently discovered exoplanets

 EK Chamaeleontis b 10 / 2026 2702.2 M⊕ 321.3 ly
HD 715 b 10 / 2026 201.9 M⊕ 542.8 ly
DENIS J1253-5709 b 10 / 2026 244.8 M⊕ 54.4 ly
L 115-21 b 10 / 2026 0.4 M⊕ 41.9 ly
TIC 219893931 b 09 / 2026 8.9 M⊕ 1319.5 ly
TOI-6417 b 09 / 2026 349.7 M⊕ 1903.9 ly
TOI-6443 b 09 / 2026 1605.4 M⊕ 2051.6 ly
TOI-7219 b 09 / 2026 661 M⊕ 1074.2 ly
TOI-4079 B b 09 / 2026 1646.8 M⊕ 1185.6 ly
HD 45652 b 09 / 2026 1557.7 M⊕ 113.9 ly
LSPM J0804+1116 b 09 / 2026 6.4 M⊕ 82.6 ly
HR 8799 f 09 / 2026 524.5 M⊕ 133.3 ly
61 Cygni A b 09 / 2026 2543.3 M⊕ 11.4 ly
TOI-5646 b 08 / 2026 45.9 M⊕ 1352.3 ly
TOI-4468 c 08 / 2026 11.1 M⊕ 1233.1 ly
Newly discovered exoplanets
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Latest scientific studies

Browse the latest scientific studies on stars and exoplanets in our galaxy. Stellar Catalog provides access to scientific data from astrophysics and stellar or planetary astronomy. It's a resource for anyone interested in the newest discoveries about what lies beyond our solar system.

 V1298 Tauri
352 ly
 study icon The GAPS Programme at TNG LXXXI. The puzzle of the HeI absorption signal in the atmosphere of V1298 Tau b with GIARPS@TNG
today

CQ Tauri
487 ly
 study icon A Warped Dust Ring in the CQ Tau Disk
today

TOI 561
276 ly
 study icon A Highly Reflective Atmosphere on the Lava World TOI-561b Revealed by JWST/NIRSpec Phase Curves
today

HAT-P-11
124 ly
 study icon Spatial variability of CH4-to-CO conversion pathways in irradiated gas giant atmospheres: implications for chemical relaxation and 1D quench schemes
today

KIC 8462852
1470 ly
 study icon The anomalously large transiting planet around Boyajian's star: evidence for a circumplanetary ring
today

Circinus X-1
31000 ly
 study icon Breaking the symmetry: X-ray polarization from a spreading layer on a tilted weakly magnetized neutron star
24. 10. 2026

HD 74371
5445 ly
 +5 study icon Photometric variability of blue supergiants: Constraints on stellar masses and evolutionary stages
24. 10. 2026

WASP 121
858 ly
 study icon Detection of Solar-like Oscillations and Granulation at Infrared Wavelengths using JWST
23. 10. 2026

WASP-43
284 ly
 study icon The coupled impacts of atmospheric dynamics and cloud microphysics on hot Jupiter atmospheres. I. An application to WASP-43b
23. 10. 2026

TOI 3884
141 ly
 study icon A Headwind-like Helium Outflow from TOI-3884b
23. 10. 2026
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