Einstein Cross Reveals Dark Matter and a Life-y Mars Rock

from Walkabout the Galaxy · host Josh Colwell, Addie Dove, Jim Cooney

We take a look the Cheyava Falls rock on Mars, or rather the Perseverance rover took a look at it, and we discuss what it saw which were some intriguing mineral formations that could have a biological origin. And gravitational lensing has enabled astronomers to map the distribution of dark matter in a small cluster of galaxies, providing a new tool to understand the distribution of this mysterious stuff. Join us for these stories, space news, space trivia, and a fake sponsor!

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This episode is 42 minutes long.

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This episode was published on September 24, 2025.

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