![Elemental [X/Fe] abundances derived in this work as a function of stellar age. The solid orange lines show the best-fit linear age–abundance relations derived in this work, and the dotted grey lines show the corresponding relations from M. Bedell et al. (2018) for comparison. -- [astro-ph.SR]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/07/The-Sun.png?resize=1200%2C718&ssl=1)
[astro-ph.SR] Recent observational studies have suggested that the Sun may be chemically peculiar relative to the majority of solar twins.
Space Weather & Heliophysics
![[NSF/AURA] This newly released image from the National Science Foundation (NSF) was taken by the Daniel K. Inouye Solar Telescope is the largest solar telescope in the world.](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/07/Our-Local-Star.png?resize=1200%2C721&ssl=1)
Posted inSpace Weather & Heliophysics
Our Local Star
[NSF/AURA] This newly released image from the National Science Foundation (NSF) was taken by the Daniel K. Inouye Solar Telescope is the largest solar telescope in the world. This view […]
Posted inInterstellar
New Horizons Extends Key Observations Of Interstellar Material Slowing The Solar Wind
[SwRI] A new Southwest Research Institute (SwRI) study based on data from NASA’s New Horizons spacecraft has uncovered fascinating insights into why the solar wind gradually slows as it moves […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Magnetic Fields, Electromagnetism, bioelectricity,, Space Weather & Heliophysics, Status Report, Stellar Cartography
Summary Of The First Year Of The Space Weather Around Young Suns Program: 900 Hours Of Low-frequency Radio And Optical Data Dedicated To Young, Solar-type Stars
The Space Weather Around Young Suns (SWAYS) program was introduced in Davis2025 as a multi-wavelength monitoring program for studying the activity and particle environments of nearby, young, solar-type stars.
Posted inAtmospheres, Climate, Weather, Magnetic Fields, Electromagnetism, bioelectricity,, Mars, Press Release, Radiation, Space Weather & Heliophysics
A Surprising Phenomenon Found In NASA Data From Mars
Data beamed back from Mars by the NASA spacecraft MAVEN provides the first evidence that a phenomenon protecting planets from solar winds can occur in the atmospheres of worlds that […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Radiation, Space Weather & Heliophysics, Status Report
Exploring Space Weather From Young Solar-like Stars as Windows to Exoplanetary Habitability
Young solar-like stars are efficient generators of magnetic activity, superflares, coronal mass ejections (CMEs), and stellar energetic particles. These phenomena drive the early evolution of stars and shape the habitability […]
Posted inAlpha Centauri, Astronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Space Weather & Heliophysics, Status Report, Stellar Cartography
Near UV Stellar Activity and Brightness Fluctuations of the Alpha Centauri AB Star System from Weeks to Decades — Inputs for Reflected Light Spectroscopy with HWO
We present the most comprehensive near-ultraviolet (NUV: 2550-3255 Angstrom) activity record to date for the Alpha Centauri AB system, combining archival IUE and HST observations spanning nearly five decades with […]
Posted inAlpha Centauri, Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Proxima Centauri, Radiation, Space Weather & Heliophysics, Status Report
Star-planet Interaction In The Proxima System
(Abridged) We search for evidence of star-planet magnetic interactions in the nearby Proxima Centauri planetary system using high-quality, high-spectral-resolution optical observations.
Posted inAstronomy & Telescopes, Imaging & Spectroscopy, Space Weather & Heliophysics, Status Report, Stellar Cartography
Astrometric Exoplanet Detection Survives Solar-like Stellar Contamination
Astrometric monitoring of stars provides a promising method for discovery of low-mass planets around nearby Sun-like stars.
Posted inAtmospheres, Climate, Weather, Imaging & Spectroscopy, Magnetic Fields, Electromagnetism, bioelectricity,, Mars, Press Release, Space Weather & Heliophysics
MAVEN Discovers Space Weather Atmospheric Effect At Mars
In December 2023, scientists looking at Mars data stumbled across something completely unexpected — observations of an atmospheric effect never before seen in the Red Planet’s atmosphere.