Hydrogen Cyanide in Comet C/2022 E3 (ZTF) from 3.4 mm Wave Spectra by Juncen Li, Jianchun Shi, Yuehua Ma, Jixian Sun

Subjects: “…Long period comets…”
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Demise of Kreutz Sungrazing Comet C/2024 S1 (ATLAS) by David Jewitt, Jane Luu, Jing Li

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Genotoxic Potential and Physicochemical Parameters of Sinos River, Southern Brazil by Madalena C. S. Scalon, Ciliana Rechenmacher, Anna Maria Siebel, Michele L. Kayser, Manoela T. Rodrigues, Sharbel W. Maluf, Marco Antonio S. Rodrigues, Luciano Basso da Silva

“…The Caraá site, located in the upper river reach, presented all the physicochemical parameters in accordance with the allowed limits in both sampling periods. Comet assay in fish revealed genotoxicity in water samples collected in the middle course site in summer and in the three sites in winter when compared to control group. …”
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