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Latest astronomy noticias
Manténgase al día con las últimas noticias astronómicas, descubrimientos sobre estrellas y exoplanetas, e investigaciones actuales. Explore artículos recientes del mundo de la astronomía.
1. 8. 2026
Estrellas | Exoplanetas | Atmósferas planetarias | Júpiter calienteWASP-178 b is an ultra-hot Jupiter, a gas giant planet that orbits extremely close to its parent star, resulting in scorching atmospheric temperatures. New high-resolution optical observations of the planet’s dayside reveal a thermal inversion, a state where the temperature in the upper atmosphere increases with altitude, opposite to the expected cooling trend. These findings help clarify the complex, three-dimensional processes driving extreme weather on such worlds.
To study the atmosphere,...
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7. 7. 2026Estrellas | Objetos estelares jóvenes | Formación planetariCI Tauri is a young star surrounded by a protoplanetary disk—a rotating, flattened cloud of gas and dust from which planets are born. While these disks often contain rings and gaps that signal planet formation, narrow structures can be too small for telescopes to resolve directly. A new method has now revealed hidden, fine-scale features within the disk of CI Tauri by measuring how brightness changes at different angles.
The analysis focused o...
Read article 7. 7. 2026Estrellas | Exoplanetas | Agujeros negros | TESSThe TOI 2796 system, which is known to host a hot Jupiter—a massive gas giant planet orbiting very close to its parent star—faces potential disruption from encounters with primordial black holes. Primordial black holes are hypothetical objects thought to have formed in the very early universe, long before the first stars and galaxies emerged. Using numerical three-body simulations, the gravitational effects of such an encounter on the planetary s...
Read article 7. 7. 2026Estrellas | Exoplanetas | Enanas marrones | ExoluEvidence for satellites orbiting the brown dwarf CD-35 2722 B has been identified using precise light measurements. While thousands of planets have been found orbiting stars, satellites around objects outside our solar system—known as exosatellites—have remained elusive and controversial. This study presents a strong detection of at least one, and possibly two, massive objects circling this brown dwarf, providing new data on how such systems form...
Read article 6. 7. 2026Estrellas | Exoplanetas | TESS | Enana naranjA newly identified planet, TOI-2195 A b, has been found orbiting an orange dwarf star. Classified as an inflated hot Neptune, this planet completes an orbit around its host star every 4.16 days. The discovery offers a new perspective on how such planets form, suggesting they may have once been much larger gas giants that lost a significant portion of their mass.
Researchers analyzed the system using the Rossiter-McLaughlin effect, which measur...
Read article 5. 7. 2026Estrellas | Exoplanetas | Atmósferas planetarias | Enanas bWhite dwarfs are the dense, cooling remnants of stars like our Sun. While it is known that some planets can survive the violent evolution of their host star into a white dwarf, little is known about the makeup of their atmospheres. Observations of the planet WD 1856 b now reveal an atmosphere containing hydrocarbons and aerosols, along with unexpectedly high temperatures, offering new insights into how these planets survive and evolve long after ...
Read article 5. 7. 2026Estrellas | Exoplanetas | Gaia | TESS | Enana naranjThe Transiting Exoplanet Survey Satellite (TESS) has successfully identified its first gravitationally bound planet through a technique known as microlensing. Microlensing occurs when the gravity of a star and its orbiting planet acts like a magnifying glass, bending and brightening the light of a more distant background star as the system passes in front of it. The newly characterized planet, designated Gaia23bra b, orbits an orange dwarf star.
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Read article 5. 7. 2026Estrellas | Exoplanetas | CHEOPS | Objetos estelares jóveneThe young V1298 Tau planetary system, estimated to be between 10 and 30 million years old, provides a window into the early stages of planet formation. Recent observations focused on the three innermost planets of the system, refining measurements of their sizes and physical properties to better understand how young worlds develop their atmospheres and internal structures.
Data from the CHEOPS space telescope allowed for high-precision measure...
Read article 2. 7. 2026Estrellas | Exoplanetas | TESSTwo giant planets, TOI-791 b and TOI-791 c, have been confirmed orbiting the F7-type star TOI-791. Both planets are similar in size to Jupiter, but they possess exceptionally low densities. They follow long-period orbits, taking approximately 139 days and 232 days respectively to complete a revolution around their host star. The planets are locked in a orbital relationship known as a 5:3 resonance, which causes detectable timing shifts as they pa...
Read article 2. 7. 2026Estrellas | ExoplaneThe ultra-hot Neptune-mass planet LTT 9779 b has been studied through the detection of its reflected starlight. Because planets are much fainter than their host stars, capturing the light they reflect is a significant technical challenge. By observing the system at high spectral resolution, investigators were able to isolate the faint signal of light bouncing off the planet, providing new information about its atmosphere.
The findings were gat...
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Exoplanetas recién descubiertos
| 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 |
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