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24. 10. 2026
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The changing light of blue supergiant HD 74371 points to a dramatic turn in its life: the star appears to be moving blueward after a red-supergiant phase. Other fresh findings reveal helium escaping from an exoplanet, infrared rhythms on WASP 121, shifting radio and X-ray emissions from young V1298 Tauri, and clouds across WASP-43 b.
SPHEREx reveals a molecular hydrogen shell around nova GK Persei
icon23. 3. 2026
iconЗвезды
Image: SPHEREx reveals a molecular hydrogen shell around nova GK Persei
GK Persei, a nova that erupted in 1901, continues to surprise astronomers more than a century later. Using data from the SPHEREx space telescope, researchers discovered a large, bipolar shell of molecular hydrogen surrounding the nova. This shell, measuring 18 by 10 arcminutes, matches the shape and location of the known H-alpha nebulosity around GK Persei, which was previously thought to be an ancient planetary nebula. The hydrogen shell is most strongly detected in a specific infrared emiss...
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Radial velocity follow-up disproves Gaia exoplanet candidate around HD 12800
icon23. 3. 2026
iconЗвезды | Экзопланеты
Image: Radial velocity follow-up disproves Gaia exoplanet candidate around HD 12800
The Gaia mission’s precise astrometric data has enabled the discovery of new exoplanet candidates, but confirming these planets can be challenging. In 2022, Gaia Data Release 3 (DR3) announced a candidate planet around the bright, Sun-like star HD 12800. However, follow-up observations using the TRES spectrograph failed to detect any evidence of the proposed planet. The data show that if the planet had existed as originally reported, it would hav...
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Disk surrounding the binary star DX Chamaeleontis may orbit in reverse
icon23. 3. 2026
iconЗвезды | Экзопланеты | Формирование планет | Молодые звездные объекты
Image: Disk surrounding the binary star DX Chamaeleontis may orbit in reverse
DX Chamaeleontis (HD 104237) is a binary star system surrounded by a compact, asymmetric ring of dust and gas at a radius of 0.43 astronomical units. This ring lies just outside the binary’s orbit, much closer than expected for a typical circumbinary disk. Normally, the strong gravity of the binary would clear out the inner region, creating a large gap between the stars and the disk. Previous simulations, assuming the disk orbits in the same ...
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A century of monitoring 70 Ophiuchi AB rules out giant planets, but habitable Saturns remain possible
icon23. 3. 2026
iconЗвезды | Экзопланеты
Image: A century of monitoring 70 Ophiuchi AB rules out giant planets, but habitable Saturns remain possible
The 70 Ophiuchi AB binary system, just 5.1 parsecs from Earth, is a prime target for future searches for Earth-like planets. Astronomers combined new radial velocity data from the Planet Finder Spectrograph with decades of previous measurements and astrometry to refine the orbits and masses of both stars. The study found no evidence for giant planets around either star, but set strong limits on what kinds of planets could still be hiding there. ...
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Molecular signatures in a diverse set of transiting exoplanets
icon22. 3. 2026
iconЗвезды | Экзопланеты
Image: Molecular signatures in a diverse set of transiting exoplanets
High-resolution spectroscopy is a powerful tool for studying the atmospheres of exoplanets. This research analyzed 50 transits of 14 different exoplanets, ranging from super-Earths to ultra-hot Jupiters, using data from the SPIRou instrument. The team used automated data reduction and advanced atmospheric retrieval techniques to search for molecular signatures in these planets’ atmospheres. The study confirmed previous detections of water (H2O...
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Spectropolarimetry reveals weak magnetic field in Maunder Minimum-like star HD 166620
icon22. 3. 2026
iconЗвезды
Image: Spectropolarimetry reveals weak magnetic field in Maunder Minimum-like star HD 166620
HD 166620 is a star thought to be in a Maunder Minimum-like state, a period of very low magnetic activity similar to what the Sun experienced in the 17th century. Using spectropolarimetric observations from the CFHT/SPIRou and ESPaDOnS instruments, astronomers analyzed the star’s magnetic field over 12 nights. While individual measurements showed no strong polarization, combining the data revealed a weak, axisymmetric dipole field with a strength...
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The newly discovered Earth-like exoplanet TOI-4552 b has a year that lasts only 8 hours
icon21. 3. 2026
iconЗвезды | Экзопланеты | TESS | Красные карлики
Image: The newly discovered Earth-like exoplanet TOI-4552 b has a year that lasts only 8 hours
Ultra-short period (USP) rocky planets, which orbit their stars in less than a day, are rare, especially around red dwarfs. TOI-4552 b (also UPM J1738-4738 b) is a newly validated Earth-sized planet with a 0.3-day orbit around a quiet M4.5V red dwarf just 90 light years away. It was first found in TESS transit data and later confirmed using TESS photometry, ground-based transit observations, and high-resolution imaging, which ruled out false posi...
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JWST coronagraphy reveals background sources and disk extinction around HD 163296
icon21. 3. 2026
iconКосмический телескоп имени Джеймса Уэбба | Формирование планет | Звезды
Image: JWST coronagraphy reveals background sources and disk extinction around HD 163296
The star HD 163296 is surrounded by a large disk of dust and gas, making it an important target for studying how disks affect the light from background stars. Using the James Webb Space Telescope’s NIRCam coronagraph, astronomers observed HD 163296 and identified several background sources seen through or near the disk. These background stars provide valuable benchmarks for measuring how much the disk dims and reddens starlight—a process known as...
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JWST reveals muted water and carbon dioxide features in the atmosphere of hot Jupiter NGTS-2 b
icon20. 3. 2026
iconЗвезды | Экзопланеты | Космический телескоп имени Джеймса Уэбба | Атмосферы планет | Горячий юпитер
Image: JWST reveals muted water and carbon dioxide features in the atmosphere of hot Jupiter NGTS-2 b
NGTS-2 b is a hot Jupiter with a temperature of about 1,470 Kelvin, orbiting an F-type star in an orbit aligned with the star’s spin. Using the James Webb Space Telescope (JWST), astronomers observed a transit of NGTS-2b and measured its atmosphere’s spectrum from 2.84 to 5.18 micrometers. The spectrum shows weak absorption features from water and carbon dioxide, but the data are not sufficient to precisely determine the planet’s atmospheric comp...
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Two warm gas giant planets discovered orbiting a Sun-like star TOI-1232
icon20. 3. 2026
iconЗвезды | Экзопланеты | TESS | Солнцеподобные звёзды
Image: Two warm gas giant planets discovered orbiting a Sun-like star TOI-1232
TOI-1232 is a Sun-like star with slightly higher metallicity than the Sun. It hosts two massive planets, both warmer than Jupiter, discovered using data from the TESS space telescope and ground-based follow-up. The inner planet, TOI-1232 b, is a Jovian-mass planet with a 14.26-day orbit, while the outer planet, TOI-1232 c, is Saturn-mass with a 30.36-day orbit. The TESS light curve of TOI-1232 is complex due to contamination from a background ...
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Недавно обнаруженные экзопланеты

 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

Просмотрите последние научные исследования звезд и экзопланет в нашей галактике. Откройте для себя новейшие исследования в области астрофизики и звездной астрономии.

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

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

WASP 121
858 ly
 study icon Detection of Solar-like Oscillations and Granulation at Infrared Wavelengths using JWST
yesterday

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
yesterday

TOI 3884
141 ly
 study icon A Headwind-like Helium Outflow from TOI-3884b
yesterday

V1298 Tauri
352 ly
 study icon Radio and high-energy variable emission from a multi-wavelength follow-up of the infant planet-hosting star V1298 Tau
22. 10. 2026

TYC 5709-354-1
437 ly
 study icon Predictions for an unseen third planet in the WISPIT 2 system
22. 10. 2026

TIC 220432308
1129 ly
 +1 study icon Two Validated Planets and 179 Candidates From a TESS Faint Star Transit Search in the ULTRASAT Fields
21. 10. 2026

TOI 431
106 ly
 +4 study icon Thermal Evolution of Lava Planets Across System Ages: Predictions for Hell of a Survey
21. 10. 2026

L 115-21
41.9 ly
 study icon A sub-Earth-sized TESS planet candidate in the nearby M-dwarf binary GJ 774, most likely orbiting GJ 774 A (TIC 351339274)
21. 10. 2026
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