SpaceTime Series 28 Episode 33
The Astronomy, Space and Science News Podcast
World's Oldest Meteor Impact Crater, Water Ice on the Moon, and the Secretive X37B Shuttle Returns
In this episode of SpaceTime, we unveil the discovery of the world's oldest known meteor impact crater located in Western Australia. This ancient structure, dating back 3.5 billion years, was identified in the Pilbara region and challenges previous notions about Earth's geological history and the origins of life. We discuss the implications of this significant find, including its potential to reshape our understanding of crust formation and the environments conducive to early microbial life.
Water Ice on the Moon
We also delve into exciting new research suggesting that water ice may be found just centimeters below the lunar surface across a much larger area of the Moon's polar regions than previously believed. Based on observations from India's Chandrayaan 3 mission, these findings could greatly influence future lunar exploration and habitation efforts, highlighting the potential for accessible sources of water ice.
The X37B Space Shuttle's Secret Mission
Additionally, we cover the return of the United States Space Force's X37B space shuttle after a classified 434-day mission. The shuttle's successful landing at Vandenberg Space Force Base marks another milestone in its ongoing operations, which include specialized testing and reconnaissance in orbit. We explore the implications of this mission for national security and the future of space operations.
00:00 Space Time Series 28 Episode 33 for broadcast on 17 March 2025
00:49 Discovery of the world's oldest meteor impact crater
06:30 Implications for Earth's geological history
12:15 Overview of potential water ice locations on the Moon
18:00 Findings from the Chandrayaan 3 mission
22:45 Return of the X37B space shuttle
27:00 Summary of recent scientific developments
30:15 Discussion on advancements in HIV prevention
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✍️ Episode References
Nature Communications
https://www.nature.com/naturecommunications/
Communications Earth and Environment
https://www.nature.com/commsenv/
NASA
https://www.nasa.gov
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