Cosmic Threads: Discovering the Universe's Hidden Matter in Hot Gas Filaments

SpaceTime: Your Guide to Space & Astronomy

In this episode of SpaceTime, we uncover significant advancements in our understanding of the universe and ongoing developments in space exploration.
Astronomers Find the Universe's Missing Matter
A groundbreaking study reveals that the universe's elusive normal matter is concealed within hot intergalactic gas filaments. This discovery, detailed in the journal Astronomy and Astrophysics, identifies a massive filament of gas, ten times the mass of the Milky Way, connecting four galaxy clusters. Utilizing the European Space Agency's XMM-Newton and JAXA's Suzaku X-ray space telescopes, researchers have successfully characterized this filament, providing crucial insights into the cosmic web's structure and supporting existing models of the universe.
Concerns Grow Over Leaks Aboard the International Space Station
Fresh concerns regarding leaks aboard the International Space Station have led to delays in the SpaceX Axiom Spaceflight 4 mission. NASA is closely monitoring cabin pressure in the Russian segment of the station, where ongoing structural issues have been identified. Despite recent repairs, the situation remains a top safety priority as astronauts prepare for their upcoming mission.
European Space Agency's Mars Rover Progress
The European Space Agency's ExoMars rover, Rosalind Franklin, is back on track to land on Mars in 2028, seven years later than originally planned. This mission aims to search for signs of past life on the Red Planet and investigate its geochemical environment. With new funding and NASA's agreement to provide launch services, the Rosalind Franklin rover is undergoing final tests to ensure its success on the Martian surface.
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✍️ Episode References
Astronomy and Astrophysics
https://www.aanda.org/
European Space Agency
https://www.esa.int/
NASA
https://www.nasa.gov/
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00:00 This is Space Time Series 28, Episode 76 for broadcast on 25 June 2025
01:00 Astronomers find the universe's missing matter
12:15 Concerns grow over leaks aboard the International Space Station
22:30 European Space Agency's Mars rover progress
30:00 Science report: New insights into conversion therapy and health impacts