The world’s largest solar telescope has gained a powerful new “eye” that promises deeper views into the workings of our sun than ever before, scientists announced on Thursday (April 24).
The Daniel K. Inouye Solar Telescope, which eyes the sun…
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Paying to prevent deforestation is positive, not ‘nothing’ (commentary)
- Should the world pay people to refrain from their destroying forests, a new commentary asks?
- There is something inherently uncomfortable about paying someone to do ‘nothing’ like not cut down their rainforest,…
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The Lyα Sky as Observed by New Horizons at 57 au
During 2023 September the Alice ultraviolet spectrograph on the New Horizons (NH) spacecraft was used to map diffuse Lyα emission over most of the sky, at a range of ∼56.9 au from the Sun. At that distance, models predict that the…
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Solar, Dust, and Tidal Effects on Martian Dayside Exospheric Temperature: An Empirical Model Based on a Decadal MAVEN/IUVS Data Set
The Martian exospheric temperature, Texo, is a fundamental parameter that regulates atmospheric escape from Mars to space. Previous studies have shown that this parameter varies significantly in response to both solar forcing and atmospheric…
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The Local Ultraviolet to Infrared Treasury. II. Refining Star Formation Histories of 10 Metal-poor Dwarf Galaxies with Simultaneous UV-optical Two-CMD Fitting
Our understanding of star formation (SF), one the most fundamental astrophysical processes driving galaxy evolution, relies heavily on detailed studies of resolved stars within the Local Volume (E. Tolstoy et al. 2009, references therein). Nearby…
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Many Elements Matter: Detailed Abundance Patterns Reveal Star Formation and Enrichment Differences among Milky Way Structural Components
Many nucleosynthetic channels create the elements, but two-parameter models characterized by α and Fe nonetheless predict stellar abundances in the Galactic disk to accuracies of 0.02–0.05 dex for most measured elements, near the level of…
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Early r-process Enrichment and Hierarchical Assembly Across the Sagittarius Dwarf Galaxy*
Dwarf galaxies like Sagittarius (Sgr) provide a unique window into the early stages of galactic chemical evolution, particularly through their metal-poor stars. By studying the chemical abundances of stars in the Sgr core and tidal streams, we…
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Discovery of TOI-2005 b: A Warm Jupiter on an Eccentric Orbit
A recent discovery of a unique exoplanet continues to challenge our understanding of solar system dynamics as a recent study published in The Astronomical Journal discusses the discovery and characterization…
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Scientists Unearth the Largest Snake Ever—Is It Bigger Than a T-Rex?
In a groundbreaking discovery in western India, scientists have uncovered fossil vertebrae from the largest snake ever to live, a creature that could have reached lengths up to 15 meters—longer than the infamous T-rex.
A Colossal Serpent…
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