# Paul Davies and James Benford on Alien Artefacts in the Solar System and a Shadow Biosphere on Earth

**URL:** <https://scanalyst.fourmilab.ch/t/paul-davies-and-james-benford-on-alien-artefacts-in-the-solar-system-and-a-shadow-biosphere-on-earth/2613>\
**Category:** Context\
**Tags:** astrobiology, james-benford, shadow-biosphere, paul-davies, astroarchaeology\
**Created:** [16 January 2023 14:12 UTC](https://scanalyst.fourmilab.ch/t/paul-davies-and-james-benford-on-alien-artefacts-in-the-solar-system-and-a-shadow-biosphere-on-earth/2613 "2023-01-16T14:12:13Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![johnwalker](https://scanalyst.fourmilab.ch/user_avatar/scanalyst.fourmilab.ch/johnwalker/32/17415_2.png) [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Post date:** [16 January 2023 14:12 UTC](https://scanalyst.fourmilab.ch/t/paul-davies-and-james-benford-on-alien-artefacts-in-the-solar-system-and-a-shadow-biosphere-on-earth/2613/1 "2023-01-16T14:12:14Z")

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[![](https://scanalyst.fourmilab.ch/uploads/default/original/2X/a/ac74a162a75085d164b7b3374d2d57a62528c201.jpeg "Are Aliens Lurking? Paul Davies & Jim Benford | Brian Keating’s INTO THE IMPOSSIBLE Podcast") ](https://www.youtube.com/watch?v=nCXV3PSQGAY)