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Telescopio espacial James Webb
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Telescopio espacial James Webb

El telescopio espacial James Webb (JWST) es el observatorio más potente de la humanidad y ve el universo en luz infrarroja. Imagínalo como unos "superojos" que ven mucho más lejos y con más claridad que el Hubble. Su espejo de 6,5 metros, formado por 18 hexágonos, parece un panal de miel. Para mantenerse frío, lo protege un escudo térmico del tamaño de una pista de tenis. El JWST no orbita la Tierra como la Luna, sino que está a 1,5 millones de kilómetros, en el punto L2, donde observa el nacimiento de las primeras estrellas y galaxias.
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Latest news from Telescopio espacial James Webb

Periodic transit timing variations measured for Neptune-like planet HAT-P-18 b
iconYesterday
iconEstrellas | Exoplanetas | Supertierras | Júpiter caliente | Telescopio espacial James Webb
Image: Periodic transit timing variations measured for Neptune-like planet HAT-P-18 b
Transit timing variations occur when a planet crosses in front of its host star at slightly different times than expected. These small shifts provide information about the orbital path of a planet and the presence of other gravitational forces in the system. By measuring these variations, observers can understand the dynamics and evolution of distant planetary systems. The James Webb Space Telescope provides the high-precision data necessary to track these subtle events across a wide range of...
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HD 158485 revealed as a binary system containing two pulsating stars
icon14. 10. 2026
iconEstrellas | Telescopio espacial James Webb | TESS
Image: HD 158485 revealed as a binary system containing two pulsating stars
HD 158485, a calibration star for the James Webb Space Telescope, is actually a binary system. Observations from TESS show two pulsating stars orbiting each other every 382.8 days, which helps refine absolute-flux measurements for astronomical data....
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Atmospheric composition of sub-Neptune planets around Red dwarf stars reveals new hybrid class
icon6. 10. 2026
iconEstrellas | Exoplanetas | Enanas rojas | Telescopio espacial James Webb | Atmósferas planetarias | Planetas océano
Image: Atmospheric composition of sub-Neptune planets around Red dwarf stars reveals new hybrid class
Analysis of sub-Neptune planets around Red dwarf stars using JWST data reveals a new category of hybrid worlds. These planets have atmospheric compositions that do not align with traditional gas dwarf or water world definitions. Study highlights include TOI-776 c....
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Atmospheric composition of the temperate super-Jupiter Epsilon Indi Ab revealed
icon3. 10. 2026
iconEstrellas | Exoplanetas | Enana naranja | Telescopio espacial James Webb | Atmósferas planetari
Image: Atmospheric composition of the temperate super-Jupiter Epsilon Indi Ab revealed
The atmosphere of Epsilon Indi Ab, a temperate super-Jupiter, has been characterized using JWST. Observations confirm the presence of ammonia, water, and methane, demonstrating a successful method for isolating planetary signals from host star light....
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Atmospheric analysis of LTT 9779 b reveals muted spectral features and cloud presence
icon3. 10. 2026
iconEstrellas | Exoplanetas | Estrellas de tipo solar | Telescopio espacial James Webb | Atmósferas planetari
Image: Atmospheric analysis of LTT 9779 b reveals muted spectral features and cloud presence
New JWST observations of the ultrahot Neptune LTT 9779 b reveal muted spectral features, indicating a cloudy atmosphere. The study measured temperatures at the planet's terminator and identified potential cloud properties for this rare world in the hot Neptune desert....
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La investigación actual

 KELT-2
439 ly
 study icon Emission spectroscopy of KELT-2A b with Gemini-North/IGRINS-2: hints of a stellar C/O ratio and sub-stellar metallicity
yesterday

TOI-2257
189 ly
 study icon The Limits of Tidal Circularization and Atmospheric Escape for Mini-Neptunes and Super-Earths: The Case of TOI-2257 b
yesterday

KELT-18
1032 ly
 study icon High-resolution transmission spectroscopy of KELT-18b Metastable helium detection at 1083 nm
14. 10. 2026

WASP 17
1315 ly
 study icon A Spatial Map of the Atmospheric Limb of a Hot Jupiter
14. 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
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