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Top astrobiology.com News

Saturn-Sized Exoplanet Orbits Record-Low Mass Star, Challenging Formation Theories
James Webb Space Telescope · United Kingdom

Saturn-Sized Exoplanet Orbits Record-Low Mass Star, Challenging Formation Theories

50% Center coverage: 28 sources
See the Story
Likely Site of New Planet in Formation Discovered
Europe

Likely Site of New Planet in Formation Discovered

50% Center coverage: 8 sources
An international team of astronomers led by the University of Galway has discovered the likely site of a new planet in formation, most likely a gas giant planet up to a few times the mass of Jupiter.See the Story
Hubble Space Telescope Reveals Moons And Rings Of ‘Weird’ Uranus
NASA

Hubble Space Telescope Reveals Moons And Rings Of ‘Weird’ Uranus

100% Center coverage: 6 sources
The Hubble Space Telescope has revealed that the moons of Uranus are darker on their leading sides — likely due to space dust, which surprises scientists.See the Story

Silicate Clouds Discovered in Atmosphere of Distant Exoplanet

80% Center coverage: 5 sources
Astrophysicists have gained precious new insights into how distant exoplanets form and what their atmospheres can look like, after using the James Webb Telescope to image two young exoplanets in extraordinary detail. Among the headline findings were the presence of silicate clouds in one of the planet's atmospheres, and a circumplanetary disk thought to feed material that can form moons around the other.James Webb Space TelescopeSee the Story

Webb Telescope Photographs ‘Strange’ Cold Planet Around Nearby Star

80% Center coverage: 5 sources
NASA’s Webb has imaged 14 Herculis c, a cold exoplanet in a misaligned system, shedding light on its orbit, temperature and atmospheric dynamics.NASASee the Story

The Epoch of Giant Planet Migration Planet Search Program. III. The Occurrence Rate of Young Giant Planets Inside the Water Ice Line - Astrobiology

We present statistical results from the Epoch of Giant Planet Migration RV planet search program. This survey was designed to measure the occurrence rate of giant planets interior to the water ice line of young Sun-like stars, compare this to the prevalence of giant planets at older ages, and provide constraints on the timescale and […] The post The Epoch of Giant Planet Migration Planet Search Program. III. The Occurrence Rate of Young Giant Pl…Read Article

A Multi-Species Atmospheric Escape Model with Excited Hydrogen and Helium: Application to HD209458b - Astrobiology

Atmospheric escape shapes exoplanet evolution and star-planet interactions, with He I 10830 Å absorption serving as a key tracer of mass loss in hot gas giants. However, transit depths vary significantly across observed systems for reasons that remain poorly understood. HD209458b, the archetypal hot-Jupiter, exhibits relatively weak He I 10830 Å and Hα absorption, which […] The post A Multi-Species Atmospheric Escape Model with Excited Hydrogen …Read Article

Characterization of the Visual BinaryTOI-6883AB and its Dynamical Implications for the Planetary companion TOI-6883Ab - Astrobiology

We demonstrate that TOI-6883 is a physically bound visual binary system composed of two solar-type stars, TOI-6883A (TIC 393818343) and TOI-6883B (TIC 393818340), initially regarded as a single star hosting the exoplanet TOI-6883b. Gaia DR3 astrometry shows that both stars have nearly identical parallaxes 10.6 mas, consistent proper motions, and a projected separation of 616 […] The post Characterization of the Visual BinaryTOI-6883AB and its Dy…Read Article

SETI Institute Names First William J. Welch Postdoctoral Fellow - Astrobiology

The SETI Institute is pleased to announce Dr. Karen I. Perez as the inaugural recipient of the William J. Welch Postdoctoral Fellowship at the SETI Institute. Beginning in the Fall of 2025, Perez will develop real-time, machine-learning-enabled and GPU-accelerated analysis pipelines for detecting single-pulse transients, as well as narrowband and broadband technosignatures, using the Allen […] The post SETI Institute Names First William J. Welch…Mountain View, California · Mountain ViewRead Article

ASGSR: Defend NASA Biological and Physical Sciences Division Science Call to Action - Astrobiology

Dear ASGSR Members and Friends, As you may have heard, the President’s Budget Request (PBR) was recently released and includes severe cuts to NASA’s Science Mission Directorate. More specifically, NASA’s Biological and Physical Sciences Division (BPS), which funds a lot of our research, faces a draconian 72% reduction in funds from $87.5M to just $25M. […] The post ASGSR: Defend NASA Biological and Physical Sciences Division Science Call to Acti…NASA · WashingtonRead Article

230 New Giant Viruses Discovered That Shape Earth's Oceans - Astrobiology

Giant viruses play a role in the survival of single-celled marine organisms called protists. These include algae, amoeba, and flagellates, that form the base of ocean food webs. And since these protists form an important part of the food chain, these large DNA viruses are often responsible for various public health hazards, including harmful algal […] The post 230 New Giant Viruses Discovered That Shape Earth’s Oceans appeared first on Astrobiol…Read Article

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