Cyanobacteria surprise scientists with evolutionary shift

Max Planck Institute for Extraterrestrial Physics scientists have been able to disentangle the X-ray glow originating in our solar system from similar emission reaching us from deep space, using data from the SRG/eROSITA space telescope. Four sky maps obtained between 2019 and 2021 from a vantage point approximately 1.5 million km from Earth—approximately four times the moon's distance—enabled the extraction of solar-wind charge exchange (SWCX) emission. The research is published in the journal

Fish living downstream of wastewater treatment plants are accumulating antidepressants, opioids and other drugs of abuse in their bodies, according to a new study. Using a new analytical method they developed, a team of researchers from the University of Waterloo discovered that several substances that affect the central nervous system, including fentanyl, methadone and venlafaxine, were detected in small fish living in rivers that receive urban wastewater.

Parasitic wasps of the genus Trichogramma are among the smallest insects in the world—yet they play an important role in natural ecosystems and agricultural landscapes as natural antagonists of pest species. Research teams from the Universities of Regensburg, Wageningen and Groningen have now identified for the first time the sex pheromone of a Trichogramma wasp. The study shows that unimaginably small amounts of the female pheromone are sufficient to attract males and trigger their courtship be