Earth gives biological “fingerprint” into space: Does this also apply to other planets?

Researchers have found that the Earth is releasing an isotope of oxygen into space that plants and bacteria produce. If other planets also emit such a biosignature, this could indicate extraterrestrial life.

Certain oxygen isotopes emitted by living organisms on Earth can be measured in space. Researchers have shown this in a study recently published in the Journal of Physical Review Research appeared …

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