Space Daily July 26, 2026 • 15:00

Earth had life for roughly three billion years before it produced enough oxygen to be detectable from space, which means NASA's new planet-hunting telescope could be staring directly at an inhabited world and see nothing - Space Daily

The search for alien life relies on a cosmic red herring: Earth itself remained invisible to the very biosignatures astronomers now use to hunt for habitable worlds.

For most of Earths inhabited history, an astronomer on another world could have studied our atmosphere and missed the most important fact about it.
Life was present by at least 3.5 billion years ago… [+5230 chars]

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Earth had life for roughly three billion years before it produced enough oxygen to be detectable from space, which means NASA's new planet-hunting telescope could be staring directly at an inhabited world and see nothing - Space Daily

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