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Latest astronomy news

Stay updated with the latest astronomy news, discoveries about stars and exoplanets, and current research. Explore fresh articles from the world of astronomy.
TESS phase curve mapping confirms a cloud-free dayside for planet WASP-43 b
icon12. 9. 2026
iconStars | Exoplanets | Hot Jupiter | TESS
Image: TESS phase curve mapping confirms a cloud-free dayside for planet WASP-43 b
WASP-43 b is a hot Jupiter, a massive gas giant planet that orbits extremely close to its host star, causing it to have a very high surface temperature. By analyzing five sectors of observations from the TESS space telescope, researchers mapped the planet's phase curve—the change in brightness as the planet orbits its star—to study the composition of its atmosphere and determine if it possesses reflective clouds on its dayside. To investigate the atmospheric properties, the TESS data were com...
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Orbital decay of planet WASP-12 b remains a mystery as companion theory is ruled out
icon12. 9. 2026
iconStars | Exoplane
Image: Orbital decay of planet WASP-12 b remains a mystery as companion theory is ruled out
The planet WASP-12 b is gradually spiraling toward its host star, a phenomenon known as orbital decay. Its orbital period is shrinking at a rate that cannot be explained by standard tidal interactions—the gravitational friction between a star and its orbiting planet—that typically occur in main-sequence stars, which are stars in the stable, hydrogen-burning phase of their lives. One theory suggested that obliquity tides, which occur when a pla...
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Atmosphere of exoplanet KELT-20b reveals diverse atomic composition and dynamic limb structure
icon12. 9. 2026
iconStars | Exoplanets | Planetary atmosphere
Image: Atmosphere of exoplanet KELT-20b reveals diverse atomic composition and dynamic limb structure
The ultra-hot Jupiter KELT-20b, also known as MASCARA-2b, maintains an equilibrium temperature of approximately 2300 Kelvin. Due to this intense heat, the planet serves as a natural laboratory for studying planetary atmospheres. By analyzing seven separate transits, where the planet passed in front of its host star, new details regarding the chemical composition and the spatial structure of its gaseous envelope have been characterized. Researc...
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Outer giant planet in Pi Mensae system influences the orbit of planet d
icon9. 9. 2026
iconStars | Exoplanets | Giant Star
Image: Outer giant planet in Pi Mensae system influences the orbit of planet d
The Pi Mensae star system hosts a complex arrangement of planets, including a massive giant planet known as planet b, a small transiting sub-Neptune planet c, and a candidate planet d orbiting between them. New research examines how the gravitational influence of the outer giant planet b impacts the orbital path of the middle planet d, specifically focusing on its eccentricity, which describes how much an orbit deviates from a perfect circle. ...
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Variability in the DQ Tau binary system shapes its surrounding planet-forming disk
icon9. 9. 2026
iconStars | Exoplanets | Young Stellar Objects | Planet formatio
Image: Variability in the DQ Tau binary system shapes its surrounding planet-forming disk
The planet-forming disk surrounding the young binary star system DQ Tau is significantly influenced by the variable radiation and matter-gathering processes of its host stars. By analyzing light emissions from the disk, it is possible to understand how stellar activity, such as X-ray flares and changes in accretion—the process where a star pulls in material from its surroundings—impacts the physical and chemical environment where new planets may ...
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Orbital stability of the retrograde planet in the Nu Octantis system
icon9. 9. 2026
iconStars | Exoplane
Image: Orbital stability of the retrograde planet in the Nu Octantis system
The Nu Octantis system consists of a compact binary star pair and a planet in a retrograde orbit, meaning the planet moves in the opposite direction to the rotation of the stars. This planet orbits near the limit of gravitational stability, making its long-term presence a complex dynamical challenge. By modeling various potential orbital configurations, researchers have sought to determine how this world maintains a stable path despite the intens...
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Thick carbon dioxide or sulfur dioxide atmospheres possible on lava planet TOI-561 b
icon5. 9. 2026
iconStars | Exoplanets | Planetary atmospheres | Lava plane
Image: Thick carbon dioxide or sulfur dioxide atmospheres possible on lava planet TOI-561 b
TOI-561 b is a rocky, ultrashort-period exoplanet that orbits its star extremely quickly, resulting in intense irradiation. Recent data suggests this world may possess a thick, secondary atmosphere hovering above a global, molten surface, or magma ocean. Unlike the primary atmospheres of giant planets, which are captured from gas clouds, a secondary atmosphere is generated by gases released from the planet's interior over time. Researchers use...
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Orbital alignment of four hot-Jupiter planets in binary star systems measured
icon31. 8. 2026
iconStars | Exoplanets | Hot Jupiter
Image: Orbital alignment of four hot-Jupiter planets in binary star systems measured
Four hot-Jupiter planets orbiting within binary star systems have been characterized for their orbital alignment. These massive gas planets, known as KELT-2 Ab, KELT-3 Ab, TOI-1333 Ab, and TOI-1789 Ab, were studied to understand how their orbits interact with their host stars. The study focused on whether these planets orbit in line with the rotation of their parent stars, providing insight into the complex dynamical processes occurring within mu...
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Outflowing atmosphere of exoplanet WASP-12b reveals complex tidal tail structure
icon31. 8. 2026
iconStars | Exoplanets | Planetary atmosphere
Image: Outflowing atmosphere of exoplanet WASP-12b reveals complex tidal tail structure
The ultra-hot Jupiter WASP-12b is leaking gas into space, forming a structure that does not follow the planet's orbit. By observing the planet as it passes in front of its host star, researchers detected hydrogen-alpha light—a specific signature of hot hydrogen gas—that reveals how the atmosphere escapes the planet's gravitational control and shears into long tidal tails. Using high-resolution transit spectroscopy, which measures how light is ...
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Ultra-hot super Neptune orbiting the subgiant star TOI-5646 is a desert survivor
icon31. 8. 2026
iconStars | Exoplanets | TESS | Giant Stars | Subgi
Image: Ultra-hot super Neptune orbiting the subgiant star TOI-5646 is a desert survivor
A rare, ultra-hot super Neptune planet named TOI-5646b has been confirmed orbiting the subgiant star TOI-5646. This planet resides within the Neptune desert, a region where such planets are seldom found due to intense stellar radiation. TOI-5646 is notable for being the largest star discovered to date that hosts a Neptune-sized planet in this harsh environment, offering new insights into how planetary systems evolve and survive extreme conditions...
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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
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
TOI-4468 b 08 / 2026 170.1 M⊕ 1233.1 ly
TOI-4468 d 08 / 2026 311 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.

HD 203771
184 ly
study icon An Intermediate-orbit Brown Dwarf Confirmed with Astrometry+Radial Velocity Joint Analysis, and the Eccentricity Distribution of Brown Dwarfs Across Different Locations
yesterday

HD 158485
390 ly
study icon TESS Pulsation Timing Reveals the JWST Calibration Star HD 158485 as a Double-pulsator Binary
yesterday

KELT-18
1032 ly
study icon High-resolution transmission spectroscopy of KELT-18b Metastable helium detection at 1083 nm
yesterday

WASP 17
1315 ly
study icon A Spatial Map of the Atmospheric Limb of a Hot Jupiter
yesterday

Gliese 892
21.3 ly
study icon Detailed study of HD 219134: a benchmark K-dwarf with a compact planetary system
12. 10. 2026

WASP-39
702 ly
study icon Limb Asymmetries on WASP-39b: A Multi-GCM Comparison of Chemistry, Clouds, and Hazes
12. 10. 2026

WASP-13
753 ly
study icon The GAPS programme at TNG LXXXII. The first atmospheric investigation of the gas giant WASP-13b at high resolution with GIARPS
12. 10. 2026

EK Chamaeleontis
321 ly
study icon EK Cha b: multi-tracer detection of a protoplanet candidate in a gas-rich environment
9. 10. 2026

HD 89744
126 ly
+2 study icon Gaseous SiO and Silicate Clouds in Three Benchmark Early-L Dwarfs
9. 10. 2026

LTT 9779
264 ly
study icon Exploring the ultrahot Neptune LTT 9779 b with CRIRES+. Non-detection of helium transmission spectra and detection of H2O on the dayside
9. 10. 2026
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