hvězdy
exoplanety
Zprávy
Latest astronomy zprávy
Zůstaňte v obraze s nejnovějšími astronomickými zprávami, objevy o hvězdách a exoplanetách a aktuálním výzkumu. Prozkoumejte čerstvé články ze světa astronomie.
6. 5. 2026
Hvězdy | ExoplanetyWASP-121 b is an ultra-hot Jupiter with extreme atmospheric conditions, including high temperatures, strong winds, and dramatic differences between its day and night sides. Using the James Webb Space Telescope, scientists measured how the planet's infrared emission changes as it orbits its star, creating a spectroscopic phase curve. Comparing these observations to advanced 3-D atmospheric models, they found that the models predict about 12% more emission than what is observed, highlighting ongoi...
Read article 
Advertisement
6. 5. 2026Hvězdy | ExoplanetyTOI-1130b is a mini-Neptune planet in a rare system with an outer hot Jupiter, both orbiting in a 2:1 resonance. Using the James Webb Space Telescope, scientists measured the planet's transmission spectrum and detected water vapor, carbon dioxide, and sulfur dioxide in its atmosphere, with a possible hint of methane. The atmosphere has a high mean molecular weight and is rich in heavy elements, suggesting it contains many volatiles.
The result...
Read article 6. 5. 2026Understanding the interior structure of rocky and water-rich exoplanets requires accurate equations of state (EoS) that describe how materials behave under different pressures and temperatures. The new PALEOS toolkit brings together EoS for iron, magnesium silicate, and water into a unified, phase-aware framework that covers 17 different material phases. This allows scientists to model density, energy, entropy, heat capacity, and other properties...
Read article 6. 5. 2026Hvězdy | ExoplanetyGJ 1132 b is an Earth-sized planet orbiting a small red dwarf star every 1.6 days. Scientists studied how much high-energy XUV radiation the planet has received over its lifetime, which is important for understanding whether it can keep an atmosphere. By analyzing the star's activity and flare history, they found that GJ 1132 b has likely received at least 50 times more XUV radiation than Earth does today.
The study compared different models f...
Read article 22. 4. 2026Hvězdy | Exoplanety | TESSTOI-1710 b is a super-Neptune planet orbiting a cool star, but unlike most planets, its orbit is strongly misaligned and retrograde, meaning it moves in the opposite direction to the star's rotation. This was determined using high-precision radial velocity measurements during a transit, which revealed a large angle between the planet's orbital plane and the star's spin axis.
The planet's orbit is wide enough that tidal forces have not altered ...
Read article 21. 4. 2026Hvězdy | Exoplanety | TESS | Obyvatelné exoplanety | Lávové planetyTwo exoplanets were confirmed orbiting a nearby red dwarf star TOI-1752, making it a valuable system for studying planetary diversity. The inner planet, TOI-1752 b, orbits very close to the star and is likely a lava world, with surface temperatures high enough to melt rock. The outer planet, TOI-1752 c, is a sub-Neptune-size planet that orbits within the optimistic habitable zone, where conditions could allow for liquid water.
Researchers comb...
Read article 21. 4. 2026Hvězdy | ExoplanetyThe T16 project analyzed light curves from the TESS space telescope's first cycle, focusing on stars as faint as 16th magnitude. By using advanced data processing and machine learning, the team searched for transiting exoplanets in over 83 million light curves. This large-scale search resulted in the identification of 11,554 planet candidates, including 10,091 that are new discoveries. The candidates have orbital periods between half a day and 27...
Read article 19. 4. 2026Hvězdy | ExoplanetyTOI-5624 is a Sun-like star about 100 parsecs away, now known to host a remarkable planetary system. Observations from TESS and CHEOPS revealed four transiting sub-Neptune planets with orbital periods of about 3.4, 7.9, 13.7, and 21.5 days. Their radii range from about 2.3 to 3.6 times that of Earth, and their masses are between 4.8 and 9.4 Earth masses. The outermost planet, TOI-5624 e, shows significant variations in its transit timing, which l...
Read article 19. 4. 2026Hvězdy | ExoplanetyGJ 1214 b is a sub-Neptune exoplanet known for its cloudy atmosphere, which has made it difficult to detect specific molecules. Using high-resolution K-band spectroscopy, scientists observed eight transits of the planet and searched for atmospheric signatures. While water vapor, methane, hydrogen sulfide, ammonia, and carbon monoxide were not detected, the data show a possible signal from carbon dioxide (CO2) at a confidence level of 3.4 sigma.
...
Read article 14. 4. 2026Hvězdy | Exoplanety | Vesmírný dalekohled Jamese Webba | Atmosféry plane29 Cyg b is a massive companion to the star 29 Cygni, with a mass near the boundary between giant planets and brown dwarfs. Using the James Webb Space Telescope, astronomers directly imaged the planet and detected strong absorption from carbon monoxide and carbon dioxide in its atmosphere. The strength of the CO2 feature compared to CO indicates that 29 Cyg b is enriched in heavy elements, or metals, relative to its host star.
This enhanced me...
Read article Top article categories
Filtered articles by category.
Nově objevené exoplanety
| 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
Latest scientific studies
Projděte si nejnovější vědecké studie o hvězdách a exoplanetách v naší galaxii. Objevte nejnovější výzkumy astrofyziky a hvězdné astronomie.
Další výzkum